CM FINAL

A client has been diagnosed with a very large pulmonary embolism (PE) and has a dropping blood pressure. What medication would the nurse being most beneficial? a. Alteplase b. Enoxaparin c. Unfractionated heparin d. Warfarin sodium

ANS: A Alteplase is a "clot-busting" agent indicated in large PEs in the setting of hemodynamic instability. The nurse knows that this drug is the priority, although heparin may be started

A nurse teaches a client who is being discharged home with a peripherally inserted central catheter (PICC). Which statement will the nurse include in this client's teaching? a. "Avoid carrying your grandchild with the arm that has the central catheter." b. "Be sure to place the arm with the central catheter in a sling during the day." c. "Flush the peripherally inserted central catheter line with normal saline daily." d. "You can use the arm with the central catheter for most activities of daily living.

ANS. A A properly placed PICC (in the antecubital fossa or the basilic vein) allows the client considerable freedom of movement. Clients can participate in most activities of daily living; however, heavy lifting can dislodge the catheter or occlude the lumen. Although it is important to keep the insertion site and tubing dry, the client can shower. The device is flushed with heparin.

A nurse is assessing a client who has an electrolyte imbalance related to renal failure. For which potential complications of this electrolyte imbalance does the nurse assess? (Select all that apply.) Reports of palpitations Slow, shallow respirations Orthostatic hypotension Paralytic ileus Skeletal muscle weakness Tall, peaked T waves on ECG

ANS. A,E,F Electrolyte imbalances associated with acute renal failure include hyperkalemia. The nurse would assess for electrocardiogram changes, including tall, peaked T waves, reports of palpitations or "skipped beats," diarrhea, and skeletal muscle weakness in clients with hyperkalemia. The other choices are potential complications of hypokalemia. Respiratory muscles may be affected with lethally high hyperkalemia.

A nurse is caring for a client with a peripheral vascular access device who is experiencing pain, redness, and swelling at the site. After removing the device, what action will the nurse take to relieve pain? a. Administer topical lidocaine to the site. b. Place warm compresses on the site. c. Administer prescribed oral pain medication. d. Massage the site with scented oils.

ANS.B At the first sign of phlebitis, the catheter will be removed and warm compresses used to relieve pain. The other options are not appropriate for this type of pain.

A nurse is caring for a client who has the following laboratory results: potassium 2.4 mEq/L (2.4 mmol/L), magnesium 1.8 mEq/L (0.74 mmol/L), calcium 8.5 mEq/L (2.13 mmol/L), and sodium 144 mEq/L (144 mmol/L). Which assessment does the nurse complete first? a. Depth of respirations b. Bowel sounds c. Grip strength d. Electrocardiography

ANS: A A client with a low serum potassium level may exhibit hypoactive bowel sounds, cardiac dysrhythmias, and muscle weakness resulting in shallow respirations and decreased handgrips. The nurse would assess the client's respiratory status first to ensure that respirations are sufficient. The respiratory assessment would include rate and depth of respirations, respiratory effort, and oxygen saturation. The other assessments are important but are secondary to the client's respiratory status.

13. A nurse evaluates a client's arterial blood gas values (ABGs): pH 7.30, PaO2 86 mm Hg, PaCO2 55 mm Hg, and HCO3 22 mEq/L (22 mmol/L). Which intervention does the nurse implement first? a. Assess the airway. b. Administer prescribed bronchodilators. c. Provide oxygen. d. Administer prescribed mucolytics.

ANS: A All interventions are important for clients with respiratory acidosis; this is indicated by the ABGs. However, the priority is assessing and maintaining an airway. Without a patent airway, other interventions will not be helpful.

A nurse assesses a client who is experiencing an acid-base imbalance. The client's arterial blood gas values are pH 7.2, PaO2 88mmHg, PaCO2 38mmHg, and HCO3 19mEq/L.Which assessment would the nurse perform first? a. Cardiac rate and rhythm b. Skin and mucous membranes c. Musculoskeletal strength d. Level of orientation

ANS: A Early cardiovascular changes for a client experiencing moderate acidosis include increased heart rate and cardiac output. As the acidosis worsens, the heart rate decreases and electrocardiographic changes will be present. The nurse responds by performing a thorough cardiovascular assessment. Changes will occur in the integumentary system, musculoskeletal system, and neurologic system, but assessing for the cardiovascular complications comes first.

The nurse caring for mechanically ventilated clients knows that older adults are at higher risk for weaning failure. What age-related changes contribute to this? (Select all that apply.) a. Chest wall stiffness b. Decreased muscle strength c. Inability to cooperate d. Less lung elasticity e. Poor vision and hearing f. Chronic anemia

ANS: A,B,D Age-related changes that increase the difficulty of weaning older adults from mechanical ventilation include increased stiffness of the chest wall, decreased muscle strength, and less elasticity of lung tissue. Not all older adults have an inability to cooperate or poor sensory acuity. Anemia can make it difficult to wean a client, but this is not a normal age-related change.

A nurse is assessing a client with hypokalemia, and notes that the client's handgrip strength has diminished since the previous assessment 1 hour ago. What action does the nurse take first? a. Assess the client's respiratory rate, rhythm, and depth. b. Measure the client's pulse and blood pressure. c. Document findings and monitor the client. d. Call the health care primary health care provider.

ANS: A In a client with hypokalemia, progressive skeletal muscle weakness is associated with increasing severity of hypokalemia. The most life-threatening complication of hypokalemia is respiratory insufficiency. It is imperative for the nurse to perform a respiratory assessment first to make sure that the client is not in immediate jeopardy. Cardiac dysrhythmias are also associated with hypokalemia. The client's pulse and blood pressure would be assessed after assessing respiratory status. Next, the nurse would call the health care primary health care provider to obtain orders for potassium replacement. Documenting findings and continuing to monitor the client would occur during and after potassium replacement therapy.

A client appears dyspneic, but the oxygen saturation is 97%. What action by the nurse is best? a. Assess for other signs of hypoxia. b. Change the sensor on the pulse oximeter. c. Obtain a new oximeter from central supply. d. Tell the client to take slow, deep breaths.

ANS: A Pulse oximetry is not always the most accurate assessment tool for hypoxia as many factors can interfere, producing normal or near-normal readings in the setting of hypoxia. The nurse would conduct a more thorough assessment. The other actions are not appropriate for a hypoxic client.

A new nurse is caring for a client receiving drug therapy via a smart pump. What statement by the new nurse demonstrates the need for more instruction on this technology? a. "I don't need to manually calculate IV infusion rates with smart pumps." b. "Responding to IV pump alarms is a high priority for client safety." c. "The hospital can preprogram the pumps for high-alert drug limits." d. "These pumps have a system to prevent fluids from free-flowing into the client."

ANS: A The "smarter" the pump is the more programming needs to occur and errors can happen and systems can fail. Using a programmable pump does not relieve the nurse of his or her responsibility to monitor the infusion site and rates and ensure the client is receiving the fluids or medications as prescribed. The Joint Commission continues to include responding to alarms as a National Patient Safety Goal. Pumps can be preprogrammed so that upper limits exist for high-alert drugs. All electronic infusion devices have some mechanism for preventing free flow of fluids if the cassette or tubing is removed from the pump.

A medical-surgical nurse is concerned about the incidence of complications related to IV therapy, including bloodstream infection. Which intervention will the nurse suggest to the management team to make the biggest impact on decreasing complications? a. Initiate a dedicated team to insert access devices. b. Require additional education for all nurses. c.Limit the use of peripheral venous access devices. d. Perform quality control testing on skin preparation products.

ANS: A The Centers for Disease Control and Prevention recommends having a dedicated IV team to reduce complications, save money, and improve client satisfaction and outcomes. In-service education would always be helpful, but it would not have the same outcomes as an IV team. Limiting the use of various access devices may not be practical. The quality of skin preparation products is only one aspect of IV insertion that could contribute to infection.

A nurse is caring for a client on mechanical ventilation and finds the client agitated and thrashing about. What action by the nurse is most appropriate? a. Assess the cause of the agitation. b. Reassure the client that he or she is safe. c. Restrain the client's hands. d. Sedate the client immediately.

ANS: A The nurse needs to determine the cause of the agitation. The inability to communicate often makes clients anxious, even to the point of panic. Pain, confusion, and hypoxia can also cause agitation. Once the nurse determines the cause of the agitation, he or she can implement measures to relieve the underlying cause. Reassurance is also important but may not address the etiology of the agitation. Restraints and more sedation may be necessary but not as a first step. Ensuring the client is adequately oxygenated is the priority.

While assessing a client's peripheral IV site, the nurse observes a streak of red along the vein path and palpates a 1.5 inch (4-cm) venous cord. How will the nurse document this finding? a. "Grade 3 phlebitis at IV site" b. "Infection at IV site" c. "Thrombosed area at IV site" d. "Infiltration at IV site"

ANS: A The presence of a red streak and palpable cord indicates grade 3 phlebitis. No information in the description indicates that infection, thrombosis, or infiltration is present.

A nurse assesses a client with diabetes mellitus who is admitted with an acid-base imbalance. The client's arterial blood gas values are pH 7.36, PaO2 98 mm Hg, PaCO2 33 mm Hg, and HCO3 18 mEq/L (18 mmol/L). Which sign or symptom does the nurse identify as an example of the client's compensatory mechanisms? Increased rate and depth of respirations Increased urinary output Increased thirst and hunger Increased release of acids from the kidneys

ANS: A This client has metabolic acidosis. The respiratory system compensates by increasing its activity and blowing off excess carbon dioxide. Increased urinary output, thirst, and hunger are signs and symptoms of hyperglycemia but are not compensatory mechanisms for acid-base imbalances. The kidneys do not release acids.

8. A nurse is caring for a client who has just experienced a 90-second tonic-clonic seizure. The client's arterial blood gas values are pH 6.88, PaO2 50 mm Hg, PaCO2 60 mm Hg, and HCO3 22 mEq/L (22 mmol/L). What action would the nurse take first? a. Apply oxygen by mask or nasal cannula. b. Apply a paper bag over the client's nose and mouth. c. Administer 50 mL of sodium bicarbonate intravenously. d. Administer 50 mL of 20% glucose and 20 units of regular insulin.

ANS: A This client is severely hypoxic and needs oxygen. Now that the seizure has ended, the client can breathe again normally, so oxygen administration will rapidly increase the PaO2. Rebreathing carbon dioxide with a paper bag would make the acidosis worse. Bicarbonate is only indicated with extremely low pH and serum bicarbonate levels. Glucose and insulin are administered to decrease the high potassium levels associated with acidosis, but this situation should reverse itself with oxygen and breathing.

A client in the emergency department has several broken ribs and reports severe pain. What care measure will best promote comfort? a. Prepare to assist with intercostal nerve block. b. Humidify the supplemental oxygen. c. Splint the chest with a large ACE wrap. d. Provide warmed blankets and warmed IV fluids.

ANS: A Uncomplicated rib fractures generally are simple to manage; however, opioids may be needed for pain. For severe pain, an intercostal nerve block is beneficial. The client needs to be able to breathe deeply and cough so as not to get atelectasis and/or pneumonia. Humidifying the oxygen will not help with the pain. Rib fractures are not wrapped or splinted in any way because this inhibits chest movement. Warmed blankets and warm IV fluids are nice comfort measures, but do not help with severe pain.

A nurse assesses a client who is experiencing an acid-base imbalance. The client's arterial blood gas values are pH 7.32, PaO2 94 mm Hg, PaCO2 34 mm Hg, and HCO3 18 mEq/L (18 mmol/L). For which clinical signs and symptoms would the nurse assess? (Select all that apply.) a. Reduced deep tendon reflexes b. Drowsiness c. Increased respiratory rate d. Decreased urinary output e. Positive Trousseau sign f. Flaccid paralysis

ANS: A,B,C Metabolic acidosis causes neuromuscular changes, including reduced muscle tone and deep tendon reflexes. Clients usually present with lethargy and drowsiness. The respiratory system will attempt to compensate for the metabolic acidosis; therefore, respirations will increase rate and depth. Flaccid paralysis can occur. A positive Trousseau sign is associated with alkalosis. Decreased urine output is not a sign of metabolic acidosis.

The nurse caring for mechanically ventilated clients uses best practices to prevent ventilator-associated pneumonia. What actions are included in this practice? (Select all that apply.) a. Adherence to proper hand hygiene b. Administering antiulcer medication c. Elevating the head of the bed d. Providing oral care per protocol e. Suctioning the client on a regular schedule f. Turning and positioning the client at least every 2 hours

ANS: A,B,C,D,F The "ventilator bundle" is a group of care measures to prevent ventilator-associated pneumonia. Actions in the bundle include using proper hand hygiene, giving antiulcer medications, elevating the head of the bed, providing frequent oral care per policy, preventing aspiration, turning and positioning, and providing pulmonary hygiene measures. Suctioning is done as needed.

A client with a new pulmonary embolism (PE) is anxious. What nursing actions are most appropriate? (Select all that apply.) a. Acknowledge the frightening nature of the illness. b. Delegate a back rub to the assistive personnel (AP). c. Give simple explanations of what is happening. d. Request a prescription for antianxiety medication. e. Stay with the client and speak in a qiuet, calm voice.

ANS: A,B,C,E Clients with PEs are often anxious. The nurse can acknowledge the client's fears, delegate comfort measures, give simple explanations the client will understand, and stay with the client. Using a calm, quiet voice is also reassuring. Sedatives and antianxiety medications are not used routinely because they can contribute to hypoxia. If the client's anxiety is interfering with diagnostic testing or treatment, they can be used, but there is no evidence that this is the case.

A nurse is caring for clients with electrolyte imbalances on a medical-surgical unit. Which clinical signs and symptoms are correctly paired with the contributing electrolyte imbalance? (Select all that apply.) a. Hypokalemia—muscle weakness with respiratory depression b. Hypermagnesemia—bradycardia and hypotension c. Hyponatremia—decreased level of consciousness d. Hypercalcemia—positive Trousseau and Chvostek signs e. Hypomagnesemia—hyperactive deep tendon reflexes f. Hypernatremia—weak peripheral pulses

ANS: A,B,C,E,F Hypokalemia is associated with muscle weakness and respiratory depression. Hypermagnesemia manifests with bradycardia and hypotension. Hyponatremia can present with decreased level of consciousness. Hypomagnesemia can be assessed through hyperactive deep tendon reflexes. Weak peripheral pulses are felt in hypernatremia. Positive Trousseau and Chvostek signs are seen in hypocalcemia.

A nurse prepares to administer a blood transfusion to a client, and checks the blood label with a second registered nurse using the International Society of Blood Transfusion (ISBT) universal bar-coding system to ensure the right blood for the right client. Which components must be present on the blood label in bar code and in eye-readable format? (Select all that apply) a. Unique facility identifier b. Lot number related to the donor c. Name of the client receiving blood d. ABO group and Rh type of the donor e. Blood type of the client receiving blood f. Signature line for 2-person verification

ANS: A,B,D The ISBT universal bar-coding system includes four components: (1) the unique facility identifier, (2) the lot number relating to the donor, (3) the product code, and (4) the ABO group and Rh type of the donor. Positive identification by two qualified health care providers is essential although automated bar coding is acceptable in some care areas. However, a signature line is not required on the blood label.

A nurse assists with the insertion of a central vascular access device. Which actions will the nurse ensure are completed to prevent a catheter-related bloodstream infection? (Select all that apply.) a. Include a review for the need of the device each day in the client's plan of care. b. Remind the primary health care provider to perform hand hygiene prior to insertion if he or she forgets. c. Cleanse the preferred site with alcohol and let it dry completely before insertion. d. Ask everyone in the room to wear a surgical mask during the procedure. e. Plan to complete a sterile dressing change on the device every day. f. Minimal client draping and barrier precautions as blood loss are minimal.

ANS: A,B,D The central vascular access device bundle to prevent catheter-related bloodstream infections includes using a checklist during insertion, performing hand hygiene before inserting the catheter and anytime someone touches the catheter, using chlorhexidine to disinfect the skin at the site of insertion, using preferred sites, and reviewing the need for the catheter every day. The practitioner who inserts the device would wear sterile gloves, gown, and mask, and anyone in the room would wear a mask. Maximal barrier precautions are used which requires the client to be draped sterilely from head to toe. The initial dressing on a central vascular access device is changed in 24 hours. Gauze and tape dressings are changed every 48 hours and transparent membrane dressings are changed every 5 to 7 days.

5. A nurse is caring for a client in acute respiratory failure who is on mechanical ventilation. What actions will promote comfort in this client? (Select all that apply.) a. Allow visitors at the client's bedside. b. Ensure that the client can communicate if awake. c. Keep the television tuned to a favorite channel. d. Provide back and hand massages when turning. e. Turn the client every 2 hours or more.

ANS: A,B,D,E

1. A nurse is planning interventions that regulate acid-base balance to ensure that the pH of a client's blood remains within the normal range. Which abnormal physiologic functions may occur if the client experiences an acid-base imbalance? (Select all that apply.) a. Reduction in the function of hormones b. Fluid and electrolyte imbalances c.Increase in the function of selected enzymes d. Excitable cardiac muscle membranes e. Increase in the effectiveness of many drugs f. Changes in GI tract excitability

ANS: A,B,D,F Acid-base imbalances interfere with normal physiology, including reducing the function of hormones and enzymes, causing fluid and electrolyte imbalances, causing heart membranes and GI tract to be more or less excitable, and decreasing the effectiveness of many drugs.

A nurse prepares to insert a short peripheral venous catheter. What actions will the nurse take to use best practices? (Select all that apply.) a. Choose a distal site on the client's nondominant arm. b. Verify that the prescription is appropriate for peripheral infusion. c. Place the venous catheter near an area of joint flexion. d. Wear a surgical mask during the catheter insertion procedure. e. Perform hand hygiene before inserting the catheter. f. Limit unsuccessful attempts by up to three clinicians to one attempt each.

ANS: A,B,E Best practices for the insertion of a short peripheral venous catheter include hand hygiene prior to the procedure, verification of the prescription for intravenous therapy and its appropriateness for infusion through a short peripheral catheter, and placement of the catheter in a distal site, away from an area of joint flexion and when possible in the client'snondominant arm. Surgical masks are needed for central venous catheter placement but not for short peripheral venous catheter placement. Unsuccessful attempts to insert the catheter should be limited to two per person and no more than four total.

A nurse assesses a client who is admitted for treatment of fluid overload. Which signs and symptoms does the nurse expect to find? (Select all that apply.) a. Increased pulse rate b. Distended neck veins c. Decreased blood pressure d. Warm and pink skin e. Skeletal muscle weakness f. Visual disturbances

ANS: A,B,E,F Signs and symptoms of fluid overload include increased pulse rate, distended neck veins, increased blood pressure, pale and cool skin, skeletal muscle weakness, and visual disturbances. Decreased blood pressure would be seen in dehydration. Warm and pink skin is a normal finding.

A registered nurse (RN) occasionally delegates client care to licensed practical nurses (LPNs) or technicians. What information does the RN consider when delegating components of IV therapy? (Select all that apply.) a. Each state's Nurse Practice Act will regulate who can perform care related to IVs. b. The nurse would check the facility's Policies and Procedures manual. c. The LPN's level of experience primarily guides the decision. d. Technicians cannot participate in any part of caring for IV infusions. e. The RN remains accountable for all aspects of IV care and delegated actions. Tf. he Infusion Nurses Society has guidelines and standards of IV therapy competency.

ANS: A,B,E,F The state Nurse Practice Act will have the information the RN needs to determine scope of practice, and in some states, LPNs and technicians are able to perform specific aspects of IV therapy. The nurse would also be familiar with facility policies and procedures regarding delegation of IV therapy. Amount of experience is not a criterion as LPNs and technicians can have their knowledge and skills verified. The nurse remains accountable for all aspects of IV therapy include what has been delegated. The Infusion Nurses Society has published guidelines and standards related to competency for IV therapy.

A nurse assesses a client who has a peripherally inserted central catheter (PICC). For which common complications will the nurse assess? (Select all that apply.) a. Phlebitis b. Pneumothorax c. Thrombophlebitis d. Excessive bleeding e. Extravasation f. Pneumothorax g. Infiltration

ANS: A,C Although the complication rate with PICCs is fairly low, the most common complications are phlebitis, thrombophlebitis, and catheter-related bloodstream infection. Excessive bleeding, infiltration, and extravasation are not common complications. Pneumothorax does not occur.

A nurse develops a plan of care for an older client who has a fluid overload. What interventions will the nurse include in this client's care plan? (Select all that apply.) a. Calculate pulse pressure with each blood pressure reading. b. Assess skin turgor using the back of the client's hand. c. Assess for pitting edema in dependent body areas. d. Monitor trends in the client's daily weights. e. Assist the client to change positions frequently. f. Teach client and family how to read food labels for sodium.

ANS: A,C,D,E,F Appropriate interventions for the client who has overhydration include calculating the pulse pressure with each BP reading as this is a sign of cardiovascular involvement, assessing for pitting edema in the client's dependent body areas, monitoring trends in the client's daily weight as fluid retention is not always visible, protecting the client's skin by helping him or her change positions, and teaching the client and family to read food labels some type of sodium restriction may be required at home. The nurse assesses skin turgor on the chest or forehead.

A 100-kg client has developed ARDS and needs mechanical ventilation. Which of the following are potentially correct ventilator management choices? (Select all that apply.) a. Tidal volume: 600 mL b. Volume-controlled ventilation c. PEEP based on oxygen saturation d. Suctioning every hour e. High-frequency oscillatory ventilation f. Limited turning for ventilator pressures

ANS: A,C,E The client with ARDS who needs mechanical ventilation benefits from "open lung" and lung protective strategies, such as using low tidal volumes (6 mL/kg body weight). Pressure-controlled ventilation is preferred due to the high pressures often required in these clients. PEEP usually starts at 5 cm H2O and adjusted to keep oxygen saturations in an acceptable range. Suctioning may need to be frequent due to secretions, but is not scheduled hourly. High-frequency oscillatory ventilation is an alternative to traditional modes of

4. A nurse assesses a client who is receiving total parenteral nutrition. For which adverse effects related to an acid-base imbalance would the nurse assess? (Select all that apply.) a. Positive Chvostek sign b. Elevated blood pressure c. Bradycardia d. Increased muscle strength e. Anxiety and irritability f. Tetany

ANS: A,E A client receiving total parenteral nutrition is at risk for metabolic alkalosis. Signs and symptoms of metabolic alkalosis include positive Chvostek sign, normal or low blood pressure, increased heart rate, skeletal muscle weakness, possible tetany and seizures, and anxiety and irritability.

A nurse is assessing clients for fluid and electrolyte imbalances. Which client will the nurse assess first for potential hyponatremia? a. A 34 year old who is NPO and receiving rapid intravenous D5W infusions. b. A 50 year old with an infection who is prescribed a sulfonamide antibiotic. c. A 67 year old who is experiencing pain and is prescribed ibuprofen. d. A 73 year old with tachycardia who is receiving digoxin.

ANS: ADextrose 5% in water (D5W) contains no electrolytes. The dextrose is rapidly metabolized when infused, leaving the solution hypotonic. Aggressive ingestion (or infusion) of hypotonic solutions can lead to hypon not taking any food or fluids by mouth (NPO), normal sodium excretion can also lead to hyponatremia. The sulfonamide antibiotic, ibuprofen, and digoxin will not put a client at risk for hyponatremia.

A home care nurse prepares to administer intravenous medication to a client. The nurse assesses the site and reviews the client's chart prior to administering the medication and notes it to have been inserted 4 months ago. The site has no redness, warmth, or swelling and flushes easily. What action does the nurse take? a. Notify the primary health care provider. b. Administer the prescribed medication. c. Discontinue the PICC. d. Switch the medication to the oral route.

ANS: B 'A PICC that is functioning well without inflammation or infection may remain in place for months. Because the line shows no signs of complications, it is permissible to administer the IV antibiotic. There is no need to call the primary health care provider or to have the IV medication changed to an oral route.

A nurse is caring for a client who has just had a central venous access line inserted. What action will the nurse take next? a. Begin the prescribed infusion via the new access. b. Ensure that an x-ray is completed to confirm placement. c. Check medication calculations with a second RN. d. Make sure that the solution is appropriate for a central line.

ANS: B A central venous access device, once placed, needs an x-ray confirmation of proper placement before it is used. The bedside nurse would be responsible for beginning the infusion once placement has been verified. Any IV solution can be given through a central line.

7. A nurse is caring for a client who has the following arterial blood values: pH 7.12, PaO2 56 mm Hg, PaCO2 65 mm Hg, and HCO3 22 mEq/L (22 mmol/L). Which clinical situation does the nurse correlate with these values? a. Diabetic ketoacidosis in a person with emphysema b. Bronchial obstruction related to aspiration of a hot dog c. Anxiety-induced hyperventilation in an adolescent d. Diarrhea for 36 hours in an older, frail woman

ANS: B Arterial blood gas values indicate that the client has acidosis with normal levels of bicarbonate, suggesting that the problem is not metabolic. Arterial concentrations of oxygen and carbon dioxide are abnormal, with low oxygen and high carbon dioxide levels. Thus, this client has respiratory acidosis from inadequate gas exchange. The fact that the bicarbonate level is normal indicates that this is an acute respiratory problem rather than a chronic problem, because no renal compensation has occurred. The client who would have these ABG

A nurse evaluates prescriptions for a client with chronic atrial fibrillation. Which medication would the nurse expect to find on this client's medication administration record to prevent a common complication of this condition? a. Sotalol b. Warfarin c. Atropine d. Lidocaine

ANS: B Atrial fibrillation puts clients at risk for developing emboli. Clients at risk for emboli are treated with anticoagulants, such as heparin, enoxaparin, or warfarin. Sotalol, atropine, and lidocaine are not appropriate for preventing this complication.

A nurse cares for a client who has a heart rate averaging 56 beats/min with no adverse symptoms. Which activity modification would the nurse suggest to avoid further slowing of the heart rate? a. make certain that your bath water is warm b."Avoid straining while having a bowel movement." c. "Limit your intake of caffeinated drinks to one a day." d. "Avoid strenuous exercise such as running."

ANS: B Bearing down strenuously during a bowel movement is one type of Valsalva maneuver, which stimulates the vagus nerve and results in slowing of the heart rate. Such a response is not desirable in a person who has bradycardia. The other instructions are not appropriate for this condition.

A nurse assesses a client with atrial fibrillation. Which manifestation would alert the nurse to the possibility of a serious complication from this condition? a. Sinus tachycardia b. Speech alterations c. Fatigue d. Dyspnea with activity

ANS: B Clients with atrial fibrillation are at risk for embolic stroke. Evidence of embolic events includes changes in mentation, speech, sensory function, and motor function. Clients with atrial fibrillation often have a rapid ventricular response as a result. Fatigue is a nonspecific complaint. Clients with atrial fibrillation often have dyspnea as a result of the decreased cardiac output caused by the rhythm disturbance.

The nurse is caring for a client who has fluid overload. What action by the nurse takes priority? Administer high-ceiling (loop) diuretics. Assess the client's lung sounds every 2 hours. Place a pressure-relieving overlay on the mattress. Weigh the client daily at the same time on the same scale.

Ans:B All interventions are appropriate for the client who is overhydrated. However, client safety is the priority. A client with fluid overload can easily go into pulmonary edema, which can be life threatening. The nurse would closely monitor the client's respiratory status.

A nurse is caring for a client who is receiving an epidural infusion for pain management. Which assessment finding requires immediate intervention from the nurse? a.Redness at the catheter insertion site b.Report of headache and stiff neck c.Temperature of 100.1° F (37.8° C) d.Pain rating of 8 on a scale of 0-10

ANS: B Complications of epidural therapy include infection, bleeding, leakage of cerebrospinal fluid, occlusion of the catheter lumen, and catheter migration. Headache, neck stiffness, and a temperature higher than 101° F (37.8° C) are signs of meningitis and would be reported to the primary health care provider immediately. The other findings are important but do not require immediate intervention.

A nurse is caring for an older client who exhibits dehydration-induced confusion. Which intervention by the nurse is best? b. Assess client further for fall risk. c. Increase the IV flow rate to 250 mL/hr. d. Place the client in a high-Fowler position.

ANS: B Dehydration most frequently leads to poor cerebral perfusion and cerebral hypoxia, causing confusion. The client with dehydration is at risk for falls because of this confusion, orthostatic hypotension, dysrhythmia, and/or muscle weakness. The nurse's best response is to do a more thorough evaluation of the client's risk for falls. Measuring intake and output may need to occur more frequently than every 4 hours, but does not address a critical need. The nurse would not adjust the IV flow rate without a prescription or standing protocol. For an older adult, this rapid an infusion rate could lead to fluid overload. Sitting the client in a high-Fowler position may or may not be comfortable but still does not address the most important issue which is safety.

A client is on intravenous heparin to treat a pulmonary embolism. The client's most recent partial thromboplastin time (PTT) was 25 seconds. What order would the nurse anticipate? a. Decrease the heparin rate. b. Increase the heparin rate. c. No change to the heparin rate. d. Stop heparin; start warfarin.

ANS: B For clients on heparin, a PTT of 1.5 to 2.5 times the normal value is needed to demonstrate that the heparin is working. A normal PTT is 25 to 35 seconds, so this client's PTT value is too low. The heparin rate needs to be increased. Warfarin is not indicated in this situation.

A nurse is preparing to admit a client on mechanical ventilation for acute respiratory failure from the emergency department. What action does the nurse take first? a. Assessing that the ventilator settings are correct b. Ensuring that there is a bag-valve-mask in the room c. Obtaining personal protective equipment d. Planning to suction the client upon arrival to the room

ANS: B Having a bag-valve-mask device is critical in case the client needs manual breathing. The respiratory therapist is usually primarily responsible for setting up the ventilator, although the nurse would know and check the settings. Personal protective equipment is important, but ensuring client safety is the most important action. The client may or may not need suctioning on arrival.

A nurse is assessing clients on a medical-surgical unit. Which adult client does the nurse identify as being at greatest risk for insensible water loss? a. Client taking furosemide. b. Anxious client who has tachypnea. c. Client who is on fluid restrictions. d. Client who is constipated with abdominal pain.

ANS: B Insensible water loss is water loss through the skin, lungs, and stool. Clients at risk for insensible water loss include those being mechanically ventilated, those with rapid respirations, and those undergoing continuous GI suctioning. Clients who have thyroid crisis, trauma, burns, states of extreme stress, and fever are also at increased risk. The client taking furosemide will have increased fluid loss, but not insensible water loss. The other two clients on a fluid restriction and for insensible fluid loss.

A client is hospitalized with a second episode of pulmonary embolism (PE). Recent genetic testing reveals that the client has an alteration in the gene CYP2C19. What action by the nurse is best? a. Instruct the client to eliminate all vitamin K from the diet. b. Prepare preoperative teaching for an inferior vena cava (IVC) filter. c. the client to a chronic illness support group. d. Teach the client to use a soft-bristled toothbrush.

ANS: B Often clients are discharged from the hospital on warfarin after a PE. However, clients with a variation in the CYP2C19 gene do not metabolize warfarin well and have much higher blood levels and more side effects. This client is a poor candidate for warfarin therapy, and the prescriber will most likely order an IVC filter device to be implanted. The other option is to lower the dose of warfarin. The nurse would prepare to do preoperative teaching on this procedure. It would be impossible to eliminate all vitamin K from the diet. A chronic illness support group may be needed, but this is not the best intervention as it is not as specific to the client as the IVC filter. A soft-bristled toothbrush is a safety measure for clients on anticoagulation therapy.

After teaching a client who is being treated for dehydration, a nurse assesses the client's understanding. Which statement indicates that the client correctly understood the teaching? a. "I must drink a quart (liter) of water or other liquid each day." b. "I will weigh myself each morning before I eat or drink." c. "I will use a salt substitute when making and eating my meals." d. "I will not drink liquids after 6 p.m. so I won't have to get up at night."

ANS: B One liter of water weighs 1 kg; therefore, a change in body weight is a good measure of excess fluid loss or fluid retention. Weight loss greater than 0.5 lb (0.2 kg) daily is indicative of excessive fluid loss. One liter of fluid a day is insufficient. A salt substitute is not related to dehydration. Clients may want to limit fluids after dinner so they won't have to get up, but this does not address dehydration if t

A client with ARDS is receiving minimal amounts of IV fluids. The new nurse notes the client is scheduled to receive a diuretic at this time. The nurse consults the Staff Development Nurse to determine the best course of action. What will the new nurse do? a. Contact the primary health care provider. b. Give the ordered diuretic as scheduled. c. Request an increase in the IV rate. d.Calculate the client's 24-hour fluid balance.

ANS: B Research has shown that clients with ARDS may benefit from conservative fluid therapy along with diuretics to maintain fluid balance. The nurse will give the ordered diuretic as scheduled. There is no reason to contact the provider or request an increased IV rate. The nurse can calculate the 24-hour fluid balance, but this will not influence the administration of the medication.

9. After teaching a client who was malnourished and is being discharged, a nurse assesses the client's understanding. Which statement indicates that the client correctly understood teaching to decrease risk for the development of metabolic acidosis? a. "I will drink at least three glasses of milk each day." b. "I will eat three well-balanced meals and a snack daily." c. "I will not take pain medication and antihistamines together." d. "I will avoid salting my food when cooking or during meals."

ANS: B Starvation or a diet with too few carbohydrates can lead to metabolic acidosis by forcing cells to switch to using fats for fuel and by creating ketoacids as a by-product of excessive fat metabolism. Eating sufficient calories from all food groups helps reduce this risk. Milk, taking pain medications with antihistamines, and salting food are not related.

A diabetic client becomes septic after a bowel resection and is having problems with respiratory distress. The nurse reviews the labs and finds the following ABG results: pH 7.50, PaCO2 30, HCO3 : 24, and PaO2 68. What does the nurse recognize as the primary factor causing this the acid-base imbalance? a. Atelectasis due to respiratory muscle fatigue b. Hyperventilation due to poor oxygenation c. Hypoventilation due to morphine PCA d. Kussmaul respirations due to glucose of 102 mg/dL (5.7 mmol/L)

ANS: B The ABG results indicate respiratory alkalosis. The client has low oxygenation as indicated by low partial pressure of arterial oxygen causing a compensatory mechanism of increased respirations and hyperventilation. Respiratory muscle fatigue and hypoventilation would cause respiratory acidosis with a low pH and high PaCO2. Kussmaul respirations are characterized by deep labored breathing and are a compensatory mechanism to metabolic acidosis, not hypoxemia or alkalosis.

5. A nurse is assessing a client who has acute pancreatitis and is at risk for an acid-base imbalance. For which manifestation of this acid-base imbalance would the nurse assess? a. Agitation b. Kussmaul respirations c. Seizures d. Positive Chvostek sign

ANS: B The pancreas is a major site of bicarbonate production. Pancreatitis can cause metabolic acidosis through underproduction of bicarbonate ions. Signs and symptoms of acidosis include lethargy and Kussmaul respirations. Agitation, seizures, and a positive Chvostek sign are signs and symptoms of the electrolyte imbalances that accompany alkalosis.

A nurse is caring for a client who has a serum calcium level of 14 mg/dL (3.5 mmol/L). Which primary health care provider order does the nurse implement first? a. Encourage oral fluid intake. b. Connect the client to a cardiac monitor. c. Assess urinary output. d. Administer oral calcitonin.

ANS: B This client has hypercalcemia. Elevated serum calcium levels can decrease cardiac output and cause cardiac dysrhythmias. Connecting the client to a cardiac monitor is a priority to assess for lethal cardiac changes. Encouraging oral fluids, assessing urine output, and administering calcitonin are treatments for hypercalcemia, but are not the highest priority.

A nurse answers a call light and finds a client anxious, short of breath, reporting chest pain, and has a blood pressure of 88/52 mm Hg. What action by the nurse takes priority? a. Assess the client's lung sounds. b. Notify the Rapid Response Team. c. Provide reassurance to the client. d. Take a full set of vital signs.

ANS: B This client has signs and symptoms of a pulmonary embolism, and the most critical action is to notify the Rapid Response Team for speedy diagnosis and treatment. The other actions are appropriate also but are not the priority.

A nurse is caring for a client who is experiencing excessive diarrhea. The client's arterial blood gas values are pH 7.18, PaO2 98 mm Hg, PaCO2 45 mm Hg, and HCO3 16 mEq/L (16 mmol/L). Which primary health care provider order does the nurse expect to receive? a. Furosemide 40 mg b. Sodium bicarbonate c. Mechanical ventilation d. Indwelling urinary catheter

ANS: B This client's arterial blood gas values represent metabolic acidosis related to a loss of bicarbonate ions from diarrhea. The bicarbonate would be replaced to help restore this client's acid-base balance as the pH is below 7.2 and the bicarbonate level is low. Furosemide would cause an increase in acid fluid and acid elimination via the urinary tract; although this may improve the client's pH, the client has excessive diarrhea and cannot afford to lose more fluid. Mechanical ventilation is used to treat respiratory acidosis for clients who cannot keep their oxygen saturation at 90%, or who have respiratory muscle fatigue. Mechanical ventilation and an indwelling urinary catheter would not be prescribed for that client.

A nurse is caring for four clients on intravenous heparin therapy. Which laboratory value possibly indicates that a serious side effect has occurred? a. Hemoglobin: 14.2 g/dL (142 g/L) b. Platelet count: 82,000/L (82 109/L c. red blood cell count 8700 d. White blood cell count: 8700/mm3 (8.7 109/L)

ANS: B This platelet count is low and could indicate heparin-induced thrombocytopenia. The other values are normal for either gender.

A nurse is planning care for a client who is lethargic and confused. The client's arterial blood gas values are pH 7.30, PaO2 96 mm Hg, PaCO2 43 mm Hg, and HCO3 19 mEq/L (19 mmol/L). Which questions would the nurse ask the client and spouse when developing the plan of care? (Select all that apply.) a. "Are you taking any antacid medications?" b. "Is your spouse's current behavior typical?" c. "Do you drink any alcoholic beverages?" d. "Have you been participating in strenuous activity?" e. "Are you experiencing any shortness of breath?"

ANS: B,C,D This client's symptoms of lethargy and confusion to a state of metabolic acidosis. The nurse would ask the client's spouse or family members if the client's behavior is typical for him or her, and establish a baseline for comparison with later assessment findings. The nurse would also assess for alcohol intake because alcohol can cause metabolic acidosis. Excessive and strenuous activity can lead to overproduction of hydrogen ions. The other options are not causes of metabolic acidosis.

A nurse is caring for clients with electrolyte imbalances on a medical-surgical unit. Which common causes are correctly paired with the corresponding electrolyte imbalance? (Select all that apply.) a. Hypomagnesemia—kidney failure b. Hyperkalemia—salt substitutes c.Hyponatremia—heart failure d.Hypernatremia—hyperaldosteronism e.Hypocalcemia—diarrhea f.Hypokalemia—loop diuretics

ANS: B,C,D,E,F Salt substitutes contain potassium and are a cause of hyperkalemia. Hyponatremia can be caused by heart failure with fluid overload. Hyperaldosterone is a cause of hypernatremia and diarrhea causes actual calcium deficits. Loop diuretics excrete potassium. Decreased kidney function is a cause of magnesium excess, not deficit.

A nurse is caring for several clients at risk for fluid imbalances. Which laboratory results are paired with the correct potential imbalance? (Select all that apply.) a. Sodium: 160 mEq/L (mmol/L): Overhydration b. Potassium: 5.4 mEq/L (mmol/L): Dehydration c. Osmolarity: 250 mOsm/L: Overhydration d. Hematocrit: 68%: Dehydration e.BUN: 39 mg/dL: Overhydration d. Magnesium: 0.8 mg/dL: Dehydration

ANS: B,C,D,F In dehydration, hemoconcentration usually results in higher levels of hemoglobin, hematocrit, serum osmolarity, glucose, protein, blood urea nitrogen, and electrolytes. The opposite is true of overhydration. The sodium level is high, indicating dehydration. The potassium level is high, also indicating possible dehydration. The osmolarity is low, indicating overhydration, the hematocrit is high indicating dehydration, the BUN is high indicating dehydration, and the magnesium level is low, indicating possible dehydration and malnutrition from diarrhea-causing diseases.

A nurse is assessing clients who are at risk for acid-base imbalance. Which clients are correctly paired with the acid-base imbalance? (Select all that apply.) Metabolic alkalosis—young adult who is prescribed intravenous morphine sulfate for pain a.Metabolic acidosis—older adult who is following a carbohydrate-free diet b. Respiratory alkalosis—client on mechanical ventilation at a rate of 28 breaths/min c.Respiratory acidosis—postoperative client who received 6 units of packed red blood cells d. Metabolic alkalosis—older client prescribed antacids for gastroesophageal reflux disease

ANS: B,C,E Respiratory acidosis often occurs as the result of underventilation. The client who is taking opioids, especially IV opioids, is at risk for respiratory depression and respiratory acidosis. One cause of metabolic acidosis is a strict low-calorie diet or one that is low in carbohydrate content. Such a diet increases the rate of fat catabolism and results in the formation of excessive ketoacids. A ventilator set at a high respiratory rate or tidal volume will cause the client to lose too much carbon dioxide, leading to an acid deficit and respiratory alkalosis. Citrate is a substance used as a preservative in blood products. It is not only a base, but also a precursor for bicarbonate. Multiple units of packed red blood cells could cause metabolic alkalosis. Sodium bicarbonate antacids may increase the risk of metabolic alkalosis.

A nurse is caring for five clients. For which clients would the nurse assess a high risk for developing a pulmonary embolism (PE)? (Select all that apply.) a. Client who had a reaction to contrast dye yesterday b. Client with a new spinal cord injury on a rotating bed c. Middle-age client with an exacerbation of asthma d. Older client who is 1 day post-hip replacement surgery e. Young obese client with a fractured femur f. Middle-age adult with a history of deep vein thrombosis

ANS: B,D,E Conditions that place clients at higher risk of developing PE include prolonged immobility, central venous catheters, surgery, obesity, advancing age, conditions that increase blood clotting, history of thromboembolism, smoking, pregnancy, estrogen therapy, heart failure, stroke, cancer (particularly lung or prostate), and trauma. A contrast dye reaction and asthma pose no risk for PE.

A nurse administers prescribed adenosine to a client. Which response would the nurse assess for as the expected therapeutic response? a. Decreased intraocular pressure b. Increased heart rate c. Short period of asystole d. Hypertensive crisis

ANS: C Clients usually respond to adenosine with a short period of asystole, bradycardia with long pauses, nausea, or vomiting. Adenosine has no impact on intraocular pressure nor does it cause increased heart rate or hypertensive crisis.

A nurse is assisting the primary health care provider (PHCP) who is intubating a client. The PHCP has been attempting to intubate for 40 seconds. What action by the nurse is best? a. Ensure that the client has adequate sedation. b. Find another qualified provider to intubate. c. Interrupt the procedure to give oxygen. d. Monitor the client's oxygen saturation.

ANS: C Each intubation attempt should not exceed 30 seconds (15 is preferable) as it causes hypoxia. The nurse would interrupt the intubation attempt and give the client oxygen. The nurse would also have adequate sedation during the procedure and monitor the client's oxygen saturation, but these do not take priority. Finding another qualified provider to intubate the client is not appropriate at this time.

After providing discharge teaching, a nurse assesses the client's understanding regarding increased risk for metabolic alkalosis. Which statement indicates that the client needs additional teaching? a. "I don't drink milk because it gives me gas and diarrhea." b. "I have been taking digoxin every day for the last 15 years." c. "I take sodium bicarbonate after every meal to prevent heartburn." d. "In hot weather, I sweat so much that I drink six glasses of water each day."

ANS: C Excessive oral ingestion of sodium bicarbonate and other bicarbonate-based antacids can cause metabolic alkalosis. Avoiding milk, taking digoxin, and sweating would not lead to increased risk of metabolic alkalosis.

A client is admitted with a pulmonary embolism (PE). The client is young, healthy, and active and has no known risk factors for PE. What action by the nurse is most appropriate? a. Encourage the client to walk 5 minutes each hour. b. Refer the client to smoking cessation classes. c.Teach the client about factor V Leiden testing. d. Tell the client that sometimes no cause for disease is found.

ANS: C Factor V Leiden is an inherited thrombophilia that can lead to abnormal clotting events, including PE. A client with no known risk factors for this disorder would be asked about family history and referred for testing. Encouraging the client to walk is healthy, but is not related to the development of a PE in this case, nor is smoking. Although there are cases of disease where no cause is ever found, this assumption is premature.

A nurse assesses clients at a family practice clinic for risk factors that could lead to dehydration. Which client is at greatest risk for dehydration? a. A 36 year old who is prescribed long-term steroid therapy. b. A 55 year old who recently received intravenous fluids. c. A 76 year old who is cognitively impaired. d. An 83 year old with congestive heart failure.

ANS: C Older adults, because they have less total body water than younger adults, are at greater risk for development of dehydration. Anyone who is cognitively impaired and cannot obtain fluids independently or cannot make his or her need for fluids known is at high risk for dehydration. The client with heart failure has a risk for both fluid imbalances. Long-term steroids and recent IV fluid administration do not increase the risk of dehydration.

A nurse teaches a client who is at risk for hyponatremia. Which statement does the nurse include in this client's teaching? a. "Have you spouse watch you for irritability and anxiety." b. "Notify the clinic if you notice muscle twitching." c. "Call your primary health care provider for diarrhea." d. "Bake or grill your meat rather than frying it."

ANS: C One sign of hyponatremia is diarrhea due to increased intestinal motility. The client would be taught to call the primary health care provider if this is noticed. Irritability and anxiety are common neurologic signs of hypokalemia. Muscle twitching is related to hypernatremia. Cooking methods are not a cause of hyponatremia.

A nurse is assessing a client who is suspected of having ARDS. The nurse is confused that although the client appears dyspneic and the oxygen saturation is 88% on 6 L/min of oxygen, the client's lungs are clear. What explanation does the more senior nurse provide? a. "The client is too dehydrated for moist-sounding lungs." b. "The client hasn't started having any bronchospasm yet." c. "Lung edema is in the interstitial tissues, not the airways." d. "Clients with ARDS usually have clear lung sounds."

ANS: C The clear lung sounds are due to the fact that the edema is found in the lung interstitial tissues, where it can't be auscultated, instead of in the airways. It is not related to the client being dehydrated or having bronchospasm. The statement about all clients with ARDS having clear lung sounds does not provide any information.

A client with acute respiratory failure is on a ventilator and is sedated. What care may the nurse delegate to the assistive personnel AP)? a. Assess the client for sedation needs. b. Get family permission for restraints. c. Provide frequent oral care per protocol. d. Use nonverbal pain assessment tools.

ANS: C The client on mechanical ventilation needs frequent oral care, which can be delegated to the AP. The other actions fall within the scope of practice of the nurse.

A nurse teaches a client who is prescribed a central vascular access device and is transferring to a skilled facility for long-term treatment. Which statement will the nurse include in this client's teaching? a. "You will need to wear a sling on your arm while the device is in place." b. "There is no risk of infection because sterile technique will be used during insertion." c. "Ask all providers to vigorously clean the connections prior to accessing the device." d. "You will not be able to take a bath with this vascular access device."

ANS: C The nurse would actively engage the client in the prevention of catheter-related bloodstream infections and taught to remind all providers to perform hand hygiene and vigorously clean connections prior to accessing the device. The other statements are incorrect.

A client has been brought to the emergency department with a life-threatening chest injury. What action by the nurse takes priority? a. Apply oxygen at 100%. b. Assess the respiratory rate. c. Ensure a patent airway. d. Start two large-bore IV lines.

ANS: C The priority for any chest trauma client is airway, breathing, and circulation. The nurse first ensures that the client has a patent airway. Assessing respiratory rate and applying oxygen are next, followed by inserting IVs.

An intubated client's oxygen saturation has dropped to 88%. What action by the nurse takes priority? a. Determine if the tube is kinked. b. Ensure that all connections are patent. c. Listen to the client's lung sounds. d.Suction the endotracheal tube.

ANS: C When an intubated client shows signs of hypoxia, check for DOPE: displaced tube (most common cause), obstruction (often by secretions), pneumothorax, and equipment problems. The nurse listens for equal, bilateral breath sounds first to determine if the endotracheal tube is still correctly placed. If this assessment is normal, the nurse would follow the mnemonic and perform suction if needed, assess for pneumothorax, and finally check the equipment.

After administering potassium chloride, a nurse evaluates the client's response. Which signs and symptoms indicate that treatment is improving the client's hypokalemia? (Select all that apply.) a. Respiratory rate of 8 breaths/min b. Absent deep tendon reflexes c. Strong productive cough d. Active bowel sounds e. U waves present on the electrocardiogram (ECG)

ANS: C,D A strong, productive cough indicates an increase in muscle strength and improved potassium imbalance. Active bowel sounds also indicate that treatment is working. A respiratory rate of 8 breaths/min, absent deep tendon reflexes, and U waves present on the ECG are all signs and symptoms of hypokalemia and do not demonstrate that treatment is working.

When working with women who are taking hormonal birth control, what health promotion measures does the nurse teach to prevent possible pulmonary embolism (PE)? (Select all that apply.) a. Avoid drinking alcohol. b. Eat more omega-3 fatty acids. c. Exercise on a regular basis. d. Maintain a healthy weight. e. Stop smoking cigarettes.

ANS: C,D,E Health promotion measures for clients to prevent thromboembolic events such as PE include

A nurse prepares to flush a peripherally inserted central catheter (PICC) line with 50 units of heparin. The pharmacy supplies a multidose vial of heparin with a concentration of 100 units/mL. Which of the syringes shown below will the nurse use to draw up and administer the heparin? a. 1ml syringe b. 3ml syringe c. 5ml syringe d. 10ml syringe

ANS: D Always use a 10-mL syringe when flushing PICC lines because a smaller syringe creates higher pressure, which could rupture the lumen of the PICC. The PICC line would be accessed with a needleless syringe.

A nurse assesses a client who has a radial artery catheter. Which assessment will the nurse complete first? a. Amount of pressure in fluid container b. Date of catheter tubing change c. Type of dressing over the site d. Skin color and capillary refill

ANS: D An intra-arterial catheter may cause arterial occlusion, which can lead to absent or decreased perfusion to the extremity. Assessment of color, warmth, sensation, capillary refill time, and distal pulses (if appropriate) are assessments for circulation distal to the catheter site. The nurse would note that there is enough pressure in the fluid container to keep the system flushed, and would check to see whether the catheter tubing needs to be changed. However, these are not assessments of greatest concern. The type of dressing over the site would be noted and most likely prescribed by policy.

A nurse is caring for an older adult client who is admitted with moderate dehydration. Which intervention will the nurse implement to prevent injury while in the hospital? a. Ask family members to speak quietly to keep the client calm. b. Assess urine color, amount, and specific gravity each day. c. Encourage the client to drink at least 1 L of fluids each shift. d. Dangle the client on the bedside before ambulating.

ANS: D An older adult with moderate dehydration may experience orthostatic hypotension. The client needs to dangle on the bedside before ambulating. Although dehydration in an older adult may cause confusion, speaking quietly will not help the client remain calm or decrease confusion. Assessing the client's urine may assist with the diagnosis of dehydration but would not prevent injury. Clients are encouraged to drink fluids, but 1 L of fluid each shift for an older adult may cause respiratory distress and symptoms of fluid overload, especially if the client has heart failure or renal insufficiency.

A nurse is caring for a client with hypocalcemia. Which action by the nurse shows poor understanding of this condition? a. Assesses the client's Chvostek and Trousseau sign. b. Keeps the client's room quiet and dimly lit. c. Moves the client carefully to avoid fracturing bones d. Administers bisphosphonates as prescribed.

ANS: D Bisphosphonates are used to treat hypercalcemia. The Chvostek and Trousseau signs are used to assess for hypocalcemia. Keeping the client in a low stimulus environment is important because the excitable nervous system cells are overstimulated. Long-standing hypocalcemia can cause fragile, brittle bones which can be fractured.

After teaching a client who is prescribed a restricted sodium diet, a nurse assesses the client's understanding. Which food choice for lunch indicates that the client correctly understood the teaching? a. Slices of smoked ham with potato salad b. Bowl of tomato soup with a grilled cheese sandwich c. Salami and cheese on whole-wheat crackers d. Grilled chicken breast with glazed carrots

ANS: D Clients on restricted sodium diets generally avoid processed, smoked, and pickled foods and those with sauces and other condiments. Foods lowest in sodium include fish, poultry, and fresh produce. The ham, tomato soup, salami, and crackers are usually high in sodium.

A nurse assesses a client who had an intraosseous catheter placed in the left leg. Which assessment finding is of greatest concern? a.The catheter has been in place for 20 hours. b.The client has poor vascular access in the upper extremities. c.The catheter is placed in the proximal tibia. d.The client's left lower extremity is cool to the touch.

ANS: D Compartment syndrome is a condition in which increased tissue pressure in a confined anatomic space causes decreased blood flow to the area. A cool extremity can signal the possibility of this syndrome. All other findings are important; however, the possible development of compartment syndrome requires immediate intervention because the client could require amputation of the limb if the nurse does not correctly assess and respond to this perfusion problem.

A nurse assesses a client who was started on intraperitoneal therapy 5 days ago. The client reports abdominal pain and "feeling warm." For which complication of this therapy will the nurse assess the client? a. Allergic reaction b. Bowel obstruction c. Catheter lumen occlusion d. Infection

ANS: D Fever, abdominal pain, abdominal rigidity, and rebound tenderness may be present in the client who has peritonitis related to intraperitoneal therapy. Peritonitis is preventable by using strict aseptic technique in handling all equipment and infusion supplies. An allergic reaction would show other signs and symptoms. Bowel obstruction and catheter lumen occlusion can occur but would present clinically in different ways.

A nurse assesses a client's electrocardiograph tracing and observes that not all QRS complexes are preceded by a P wave. How would the nurse interpret this observation? a. The client has hyperkalemia causing irregular QRS complexes. b. Ventricular tachycardia is overriding the normal atrial rhythm. c. The client's chest leads are not making sufficient contact with the skin. d. Ventricular and atrial depolarizations are initiated from different sites.

ANS: D Normal rhythm shows one P wave preceding each QRS complex, indicating that all depolarization is initiated at the sinoatrial node. QRS complexes without a P wave indicate a different source of initiation of depolarization. This finding on an electrocardiograph tracing is not an indication of hyperkalemia, ventricular tachycardia, or disconnection of leads.

A new nurse asks for an explanation of "refractory hypoxemia." What answer by the staff development nurse is best? a. "It is chronic hypoxemia that accompanies restrictive airway disease." b. "It is hypoxemia from lung damage due to mechanical ventilation." "c. It is hypoxemia that continues even after the client is weaned from oxygen." d. "It is hypoxemia that persists even with 100% oxygen administration."

ANS: D Refractory hypoxemia is hypoxemia that persists even with the administration of 100% oxygen. It is a cardinal sign of acute respiratory distress syndrome. It does not accompany restrictive airway disease and is not caused by the use of mechanical ventilation or by being weaned from oxygen.

A client is on mechanical ventilation and the client's spouse wonders why ranitidine is needed since the client "only has lung problems." What response by the nurse is best? a. "It will increase the motility of the gastrointestinal tract." b. "It will keep the gastrointestinal tract functioning normally." c. "It will prepare the gastrointestinal tract for enteral feedings." d. "It will prevent ulcers from the stress of mechanical ventilation.

ANS: D Stress ulcers can occur in many clients who are receiving mechanical ventilation, and often prophylactic medications are used to prevent them and possible subsequent aspiration. Frequently used medications include antacids, histamine blockers, and proton pump inhibitors. Ranitidine is a histamine-blocking agent.

A nurse is evaluating a client who is being treated for dehydration. Which assessment result does the nurse correlate with a therapeutic response to the treatment plan? a. Increased respiratory rate from 12 to 22 breaths/min b. Decreased skin turgor on the client's posterior hand and forehead c. Increased urine specific gravity from 1.012 to 1.030 g/mL d. Decreased orthostatic changes when standing

ANS: D The focus of management for clients with dehydration is to increase fluid volumes to normal. When blood volume is normal, orthostatic blood pressure and pulse changes will not occur. This assessment finding shows a therapeutic response to treatment. Increased respirations, decreased skin turgor, and higher urine specific gravity all are indicators of continuing dehydration.

A nurse is caring for a client who is experiencing moderate metabolic alkalosis. What action would the nurse take? Monitor daily hemoglobin and hematocrit values. Administer furosemide intravenously. Encourage the client to take deep breaths. Teach the client fall prevention measures.

ANS: D The most important nursing care for a client who is experiencing moderate metabolic alkalosis is providing client safety. Client's with metabolic alkalosis have muscle weakness and are at risk for falling. The other nursing interventions are not appropriate for metabolic alkalosis.

A nurse is caring for a client on mechanical ventilation. When double-checking the ventilator settings with the respiratory therapist, what would the nurse ensure? a. The client is able to initiate spontaneous breaths. b. The inspired oxygen has adequate humidification. c. The upper peak airway pressure limit alarm is off. d. The upper peak airway pressure limit alarm is on.

ANS: D The upper peak airway pressure limit alarm will sound when the airway pressure reaches a preset maximum. This is critical to prevent barotrauma to the lungs. Alarms are never be turned off. Initiating spontaneous breathing is important for some modes of ventilation but not others. Adequate humidification is important but does not take priority over preventing injury.

A nurse prepares to insert a peripheral venous catheter in an older adult. What action will the nurse take to protect the client's skin during this procedure? a. Lower the extremity below the level of the heart. b. Apply warm compresses to the extremity. c. Tap the skin lightly and avoid slapping. d. Place a washcloth between the skin and tourniquet.

ANS: D To protect the client's skin, the nurse will place a washcloth or the client's gown between the o distend the vein but will not protect the client's skin.

A nurse is assessing clients who have intravenous therapy prescribed. Which assessment finding for a client with a peripherally inserted central catheter (PICC) requires immediate attention? a. The initial site dressing is 3 days old. b. The PICC was inserted 4 weeks ago. c. A securement device is absent. d. Upper extremity swelling is noted.

ANS: D Upper extremity swelling could indicate infiltration, and the PICC will need to be removed. The initial dressing over the PICC site would be changed within 24 hours. This does not require immediate attention, but the swelling does. The dwell time for PICCs can be months or even years. Securement devices are being used more often now to secure the catheter in place and prevent complications such as phlebitis and infiltration. The IV lacking one does not take priority over the client whose arm is swollen.

A nurse delegates care to an assistive personnel (AP). Which statement will the nurse include when delegating hygiene for a client who has a vascular access device? a. "Provide a bed bath instead of letting the client take a shower." b. "Use sterile technique when changing the dressing." c. "Disconnect the intravenous fluid tubing prior to the client's bath." d. "Use a plastic bag to cover the extremity with the device."

ANS: D The nurse will ask the AP to cover the extremity with the vascular access device with a plastic bag or wrap to keep the dressing and site dry. The client may take a shower or bath with a vascular device. The nurse will disconnect IV fluid tubing prior to the bath and change the dressing using sterile technique if necessary. These options are not appropriate to delegate to the AP.

A nurse assesses a client's peripheral IV site, and notices edema and tenderness above the site. What action will the nurse take next? a. Apply cold compresses to the IV site. b. Elevate the extremity on a pillow. c. Flush the catheter with normal saline. d. Stop the infusion of intravenous fluids.

ANS: DInfiltration occurs when the needle dislodges partially or completely from the vein. Signs of infiltration include edema and tenderness above the site. The nurse would stop the infusion and remove the catheter. Cold compresses and elevation of the extremity can be done after the

A nurse is planning care for a client who is hyperventilating. The client's arterial blood gas values are pH 7.52, PaO2 94 mm Hg, PaCO2 31 mm Hg, and HCO3 26 mEq/L (26 mmol/L). Which question would the nurse ask when developing this client's plan of care? a. "Do you take any over-the-counter medications?" b. "You appear anxious. What is causing your distress?" c. "Do you have a history of anxiety attacks?" d. "You are breathing fast. Is this causing you to feel light-headed?

Ans.B The nurse would assist the client who is experiencing anxiety-induced respiratory alkalosis to identify causes of the anxiety. The other questions will not identify the cause of the acid-base imbalance. The other three questions are also yes/no and close-ended.

A nurse is assessing clients on a medical-surgical unit. Which client would the nurse identify as being at greatest risk for atrial fibrillation? a. A 45-year-old who takes an aspirin daily. b. A 50-year-old who is post coronary artery bypass graft surgery. c. A 78-year-old who had a carotid endarterectomy. d. An 80-year-old with chronic obstructive pulmonary disease.

Ans. B Atrial fibrillation occurs commonly in clients with cardiac disease. Other risk factors include hypertension (HTN), previous ischemic stroke, transient ischemic attack (TIA) or other thromboembolic event, diabetes mellitus, heart failure, obesity, hyperthyroidism, chronic kidney disease, excessive alcohol use, and mitral valve disease. The other conditions do not place these clients at higher risk for atrial fibrillation.

A nurse evaluates the following arterial blood gas values in a client: pH 7.48, PaO2 98 mm Hg, PaCO2 28 mm Hg, and HCO3 22 mEq/L (22 mmol/L). Which client condition does the nurse correlate with these results? a. Diarrhea and vomiting for 36 hours b. Anxiety-induced hyperventilation c. Chronic obstructive pulmonary disease (COPD) d. Diabetic ketoacidosis and emphysema

Ans. B The elevated pH level indicates alkalosis. The bicarbonate level is normal, and so is the oxygen partial pressure. Loss of carbon dioxide is the cause of the alkalosis, which would occur in response to hyperventilation. Diarrhea and vomiting would cause metabolic acidosis and COPD would lead to respiratory acidosis. The client with emphysema most likely would have combined metabolic acidosis on top of a mild, chronic respiratory acidosis.

A nurse assesses a client who is prescribed a medication that inhibits aldosterone secretion and release. For which potential complications will the nurse assess? (Select all that apply.) a. Urine output of 25 mL/hr b. Serum potassium level of 5.4 mEq/L (5.4 mmol/L) c. Urine specific gravity of 1.02 g/mL d. Serum sodium level of 128 mEq/L (128 mmol/L) e. Blood osmolality of 250 mOsm/kg (250 mmol/kg)

Ans. B,E Aldosterone is a naturally occurring hormone of the mineralocorticoid type that increases the reabsorption of water and sodium in the kidney at the same time that it promotes excretion of potassium. Any drug or condition that disrupts aldosterone secretion or release increases the client's risk for excessive water loss (increased urine output), increased potassium reabsorption, decreased blood osmolality, and increased urine specific gravity. The client would not be at risk for sodium imbalance.

A nurse cares for a client who has a serum potassium of 6.5 mEq/L (6.5 mmol/L) and is exhibiting cardiovascular changes. Which intervention will the nurse implement first? a. Prepare to administer patiromer by mouth. b. Provide a heart-healthy, low-potassium diet. c. Prepare to administer dextrose 20% and 10 units of regular insulin IV push. d. Prepare the client for hemodialysis treatment.

Ans. C A client with a critically high serum potassium level and cardiac changes would be treated immediately to reduce the extracellular potassium level. Potassium movement into the cells is enhanced by insulin by increasing the activity of sodium-potassium pumps. Insulin will decrease both serum potassium and glucose levels and therefore would be administered with dextrose to prevent hypoglycemia. Patiromer may be ordered, but this therapy may take hours to reduce potassium levels. Dialysis may also be needed, but this treatment will take much longer to implement and is not the first intervention the nurse would implement. Decreasing potassium intake may help prevent hyperkalemia in the future but will not decrease the client's current potassium level.

A client has a large pulmonary embolism and is started on oxygen. The nurse asks the charge nurse why the client's oxygen saturation has not significantly improved. What response by the nurse is best? a. "Breathing so rapidly interferes with oxygenation." b. "Maybe the client has respiratory distress syndrome." c. "The blood clot interferes with perfusion in the lungs." d. "The client needs immediate intubation and mechanical ventilation."

Ans. C A large blood clot in the lungs will significantly impair gas exchange and oxygenation. Unless the clot is dissolved, this process will continue unabated. Hyperventilation can interfere with oxygenation by shallow breathing, but there is no evidence that the client is hyperventilating, and this is also not the most precise physiologic answer. Acute respiratory distress syndrome can occur, but this is not as likely soon after the client starts on oxygen plus there is no indication of how much oxygen the client is on. The client may need to be mechanically ventilated, but without concrete data on FiO2 and SaO2, the nurse cannot make that judgment

A nurse assesses a client who is prescribed furosemide for hypertension. For which acid-base imbalance does the nurse assess to prevent complications of this therapy? a. Respiratory acidosis b. Respiratory alkalosis c. Metabolic acidosis d. Metabolic alkalosis

Ans. D Many diuretics, especially loop and thiazide diuretics, increase the excretion of hydrogen ions, leading to excess acid loss through the renal system. This situation is an actual acid deficit.

A nurse assesses a client who is admitted with an acid-base imbalance. The client's arterial blood gas values were pH 7.32, PaO2 85 mm Hg, PaCO2 34 mm Hg, and HCO3 16 mEq/L (16 mmol/L). The most recent blood gasses show a drop in the pH. What action does the nurse take next? a. Assess client's rate, rhythm, and depth of respiration. b. Measure the client's pulse and blood pressure. c. Document the findings and continue to monitor. d. Notify the primary health care provider.

Ans.A Progressive skeletal muscle weakness is associated with increasing severity of acidosis. Muscle weakness can lead to severe respiratory insufficiency. Acidosis does lead to dysrhythmias (due to hyperkalemia), but these would best be assessed with cardiac monitoring. Findings would be documented, but simply continuing to monitor is not sufficient. Before notifying the primary care provider, the nurse must have more data to report.

A new nurse is preparing to administer IV potassium to a client with hypokalemia. What action indicates the nurse needs to review this procedure? a. Notifies the pharmacy of the IV potassium order. b. Assesses the client's IV site every hour during infusion. c. Sets the IV pump to deliver 30 mEq of potassium an hour. d. Double-checks the IV bag against the order with the precepting nurse.

NS: C IV potassium should not be infused at a rate exceeding 20mEq/hr under any circumstances. This action shows a need for further knowledge. The other actions are acceptable for this high-alert drug.

A client is brought to the emergency department after sustaining injuries in a severe car crash. The client's chest wall does not appear to be moving normally with respirations, oxygen saturation is 82%, and the client is cyanotic. What action does the nurse take first? a. Administer oxygen and reassess. b. Auscultate the client's lung sounds. c. Facilitate a portable chest x-ray. d. Prepare to assist with intubation.

NS: D This client has signs and symptoms of flail chest and, with the other signs, needs to be intubated and mechanically ventilated immediately. The nurse does not have time to administer oxygen and wait to reassess, or to listen to lung sounds. A chest x-ray will be taken after the client is intubated.