HESI Fundamentals

The nurse notes documentation that a client is exhibiting Cheyne-Stokes respirations. On assessment of the client, the nurse should expect to note which finding? 1. Rhythmic respirations with periods of apnea 2. Regular rapid and deep, sustained respirations 3. Totally irregular respiration in rhythm and depth 4. Irregular respirations with pauses at the end of inspiration and expiration

1 Rationale: Cheyne-Stokes respirations are rhythmic respirations with periods of apnea and can indicate a metabolic dysfunction in the cerebral hemisphere or basal ganglia. Neurogenic hyperventilation is a regular, rapid and deep, sustained respiration that can indicate a dysfunction in the low midbrain and middle pons. Ataxic respirations are totally irregular in rhythm and depth and indicate a dysfunction in the medulla. Apneustic respirations are irregular respirations with pauses at the end of inspiration and expiration and can indicate a dysfunction in the middle or caudal pons.

The nurse is monitoring the status of a postoperative client in the immediate postoperative period. The nurse would become most concerned with which sign that could indicate an evolving complication? 1. Increasing restlessness 2. A pulse of 86 beats/minute 3. Blood pressure of 110/70 mm Hg 4. Hypoactive bowel sounds in all 4 quadrants

1 Rationale: Increasing restlessness is a sign that requires continuous and close monitoring because it could indicate a potential complication, such as hemorrhage, shock, or pulmonary embolism. A blood pressure of 110/70 mm Hg with a pulse of 86 beats/minute is within normal limits. Hypoactive bowel sounds heard in all 4 quadrants are a normal occurrence in the immediate postoperative period.

The nurse is assessing a client with a suspected diagnosis of hypocalcemia. Which clinical manifestation would the nurse expect to note in the client? 1. Twitching 2. Hypoactive bowel sounds 3. Negative Trousseau's sign 4. Hypoactive deep tendon reflexes

1 Rationale: The normal serum calcium level is 9 to 10.5 mg/dL (2.25 to 2.75 mmol/L). A serum calcium level lower than 9 mg/dL (2.25 mmol/L) indicates hypocalcemia. Signs of hypocalcemia include paresthesias followed by numbness, hyperactive deep tendon reflexes, and a positive Trousseau's or Chvostek's sign. Additional signs of hypocalcemia include increased neuromuscular excitability, muscle cramps, twitching, tetany, seizures, irritability, and anxiety. Gastrointestinal symptoms include increased gastric motility, hyperactive bowel sounds, abdominal cramping, and diarrhea.

The nurse is preparing to administer medication using a client's nasogastric tube. Which actions should the nurse take before administering the medication? Select all that apply. 1. Check the residual volume. 2. Aspirate the stomach contents. 3. Turn off the suction to the nasogastric tube. 4. Remove the tube and place it in the other nostril. 5. Test the stomach contents for a pH indicating acidity.

1, 2, 3, 5 Rationale: By aspirating stomach contents, the residual volume can be determined and the pH checked. A pH less than 3.5 verifies gastric placement. The suction should be turned off before the tubing is disconnected to check for residual volume; in addition, suction should remain off for 30 to 60 minutes following medication administration to allow for medication absorption. There is no need to remove the tube and place it in the other nostril in order to administer a feeding; in fact, this is an invasive procedure and is unnecessary.

Potassium chloride intravenously is prescribed for a client with hypokalemia. Which actions should the nurse take to plan for preparation and administration of the potassium? Select all that apply. 1. Obtain an intravenous (IV) infusion pump. 2. Monitor urine output during administration. 3. Prepare the medication for bolus administration. 4. Monitor the IV site for signs of infiltration or phlebitis. 5. Ensure that the medication is diluted in the appropriate volume of fluid. 6. Ensure that the bag is labeled so that it reads the volume of potassium in the solution.

1, 2, 4, 5, 6 Rationale: Potassium chloride administered intravenously must always be diluted in IV fluid and infused via an infusion pump. Potassium chloride is never given by bolus (IV push). Giving potassium chloride by IV push can result in cardiac arrest. The nurse should ensure that the potassium is diluted in the appropriate amount of diluent or fluid. The IV bag containing the potassium chloride should always be labeled with the volume of potassium it contains. The IV site is monitored closely because potassium chloride is irritating to the veins and there is risk of phlebitis. In addition, the nurse should monitor for infiltration. The nurse monitors urinary output during administration and contacts the health care provider if the urinary output is less than 30 mL/hour.

The clinic nurse prepares to perform a focused assessment on a client who is complaining of symptoms of a cold, a cough, and lung congestion. Which should the nurse include for this type of assessment? Select all that apply. 1. Auscultating lung sounds 2. Obtaining the client's temperature 3. Assessing the strength of peripheral pulses 4. Obtaining information about the client's respirations 5. Performing a musculoskeletal and neurological examination 6. Asking the client about a family history of any illness or disease

141. 1, 2, 4 Rationale: A focused assessment focuses on a limited or short-term problem, such as the client's complaint. Because the client is complaining of symptoms of a cold, a cough, and lung congestion, the nurse would focus on the respiratory system and the presence of an infection. A complete assessment includes a complete health history and physical examination and forms a baseline database. Assessing the strength of peripheral pulses relates to a vascular assessment,which isnot related to this client's complaints. A musculoskeletal and neurological examination also is not related to this client's complaints. However, strength of peripheral pulses and a musculoskeletal and neurological examination would be included in a complete assessment. Likewise, asking the client about a family history of any illness or disease would be included in a complete assessment.

The nurse is testing the extraocular movements in a client to assess for muscle weakness in the eyes. The nurse should implement which assessment technique to assess for muscle weakness in the eye? 1. Test the corneal reflexes. 2. Test the 6 cardinal positions of gaze. 3. Test visual acuity, using a Snellen eye chart. 4. Test sensory function by asking the client to close the eyes and then lightly touching the forehead, cheeks, and chin.

2 Rationale: Testing the 6 cardinal positions of gaze is done to assess for muscle weakness in the eyes. The client is asked to hold the head steady, and then to follow movement of an object through the positions of gaze. The client should follow the object in a parallel manner with the 2 eyes. A Snellen eye chart assesses visual acuity and cranial nerve II (optic). Testing sensory function by having the client close his or her eyes and then lightly touching areas of the face and testing the corneal reflexes assess cranial nerve V (trigeminal).

The nurse is caring for a postoperative client who is receiving demand-dose hydromorphone via a patient-controlled analgesia (PCA) pump for pain control. The nurse enters the client's room and finds the client drowsy and records the following vital signs: temperature 97.2 °F (36.2 °C) orally, pulse 52 beats per minute, blood pressure 101/58 mm Hg, respiratory rate 11 breaths per minute, and SpO2 of 93% on 3 liters of oxygen via nasal cannula. Which action should the nurse take n ext? 1. Document the findings. 2. Attempt to arouse the client. 3. Contact the health care provider (HCP) immediately. 4. Check the medication administration history on the PCA pump.

2 Rationale: The primary concern with opioid analgesics is respiratory depression and hypotension. Based on the assessment findings, the nurse should suspect opioid overdose. The nurse should first attempt to arouse the client and then reassess the vital signs. The vital signs may begin to normalize once the client is aroused because sleep can also cause decreased heart rate, blood pressure, respiratory rate, and oxygen saturation. The nurse should also check to see how much medication has been taken via the PCA pump, and should continue to monitor the client closely to determine if further action is needed. The nurse should contact the HCP and document the findings after all data are collected, after the client is stabilized, and if an abnormality still exists after arousing the client.

An adult female client has a hemoglobin level of 10.8 g/dL (108 mmol/L). The nurse interprets that this result is most likely caused by which condition noted in the client's history? 1. Dehydration 2. Heart failure 3. Iron deficiency anemia 4. Chronic obstructive pulmonary disease

3 Rationa le: The normal hemoglobin level for an adult female client is 12-16 g/dL (120-160 mmol/L). Iron deficiency anemia can result in lower hemoglobin levels. Dehydration may increase the hemoglobin level by hemoconcentration. Heart failure and chronic obstructive pulmonary disease may increase the hemoglobin level as a result of the body's need for more oxygen-carrying capacity.

While performing a cardiac assessment on a client with an incompetent heart valve, the nurse auscultates a murmur. The nurse documents the finding and describes the sound as which? 1. Lub-dub sounds 2. Scratchy, leathery heart noise 3. A blowing or swooshing noise 4. Abrupt, high-pitched snapping noise

3 Rationale: Aheart murmur is an abnormal heart sound and is described as a faint or loud blowing, swooshing sound with a high, medium, or low pitch. Lub-dub sounds are normal and represent the S1 (first) heart sound and S2 (second) heart sound, respectively. A pericardial friction rub is described as a scratchy, leathery heart sound. A click is described as an abrupt, high-pitched snapping sound.

The nurse is preparing to insert a nasogastric tube into a client. The nurse should place the client in which position for insertion? 1. Right side 2. Low Fowler's 3. High Fowler's 4. Supine with the head flat

3 Rationale: During insertion of a nasogastric tube, the client is placed in a sitting or high Fowler's position to facilitate insertion of the tube and reduce the risk of pulmonary aspiration if the client should vomit. The right side, and low Fowler's and supine positions place the client at risk for aspiration; in addition, these positions do not facilitate insertion of the tube.

The nurse is caring for a client with heart failure who is receiving high doses of a diuretic. On assessment, the nurse notes that the client has flat neck veins, generalized muscle weakness, and diminished deep tendon reflexes. The nurse suspects hyponatremia. What additional signs would the nurse expect to note in a client with hyponatremia? 1. Muscle twitches 2. Decreased urinary output 3. Hyperactive bowel sounds 4. Increased specific gravity of the urine

3 Rationale: The normal serum sodium level is 135 to 145 mEq/L (135 to 145 mmol/L). Hyponatremia is evidenced by a serum sodium level lower than 135 mEq/L (135 mmol/L). Hyperactive bowel sounds indicate hyponatremia. The remaining options are signs of hypernatremia. In hyponatremia, muscle weakness, increased urinary output, and decreased specific gravity of the urine would be noted.

The nurse enters a client's room and finds that the wastebasket is on fire. The nurse immediately assists the client out of the room. What is the n ext nursing action? 1. Call for help. 2. Extinguish the fire. 3. Activate the fire alarm. 4. Confine the fire by closing the room door.

3 Rationale: The order of priority in the event of a fire is to rescue the clients who are in immediate danger. The next step is to activate the fire alarm. The fire then is confined by closing all doors and, finally, the fire is extinguished. Test-Taking Strategy: Note the strategic word, next. Remember the mnemonic RACE to prioritize in the event of a fire. R is rescue clients in immediate danger, A is alarm (sound the alarm), C is confine the fire by closing all doors, and E is extinguish or evacuate.

The nurse is reviewing a plan of care for a client with an internal radiation implant. Which intervention, if noted in the plan, indicates the need for revision of the plan? 1. Wearing gloves when emptying the client's bedpan 2. Keeping all linens in the room until the implant is removed 3. Wearing a lead apron when providing direct care to the client 4. Placing the client in a semiprivate room at the end of the hallway

4 Rationale: A private room with a private bath is essential if a client has an internal radiation implant. This is necessary to prevent accidental exposure of other clients to radiation. The remaining options identify accurate interventions for a client with an internal radiation implant and protect the nurse from exposure.

On review of the clients' medical records, the nurse determines that which client is at risk for fluid volume excess? 1. The client taking diuretics and has tenting of the skin 2. The client with an ileostomy from a recent abdominal surgery 3. The client who requires intermittent gastrointestinal suctioning 4. The client with kidney disease and a 12-year history of diabetes mellitus

4 Rationale: Afluid volume excess is also known as overhydration or fluid overload and occurs when fluid intake or fluid retention exceeds the fluid needs of the body. The causes of fluid volume excess include decreased kidney function, heart failure, use of hypotonic fluids to replace isotonic fluid losses, excessive irrigation of wounds and body cavities, and excessive ingestion of sodium. The client taking diuretics, the client with an ileostomy, and the client who requires gastrointestinal suctioning are at risk for fluid volume deficit.

A client with a 3-day history of nausea and vomiting presents to the emergency department. The client is hypoventilating and has a respiratory rate of 10 breaths/minute. The electrocardiogram (ECG) monitor displays tachycardia, with a heart rate of 120 beats/ minute. Arterial blood gases are drawn and the nurse reviews the results, expecting to note which finding? 1. A decreased pH and an increased PaCO2 2. An increased pH and a decreased PaCO2 3. A decreased pH and a decreased HCO3- 4. An increased pH and an increased HCO3-

4 Rationale: Clients experiencing nausea and vomiting would most likely present with metabolic alkalosis resulting from loss of gastric acid, thus causing the pH and HCO3 À to increase. Symptoms experienced by the client would include hypoventilation and tachycardia. Option 1 reflects a respiratory acidotic condition. Option 2 reflects a respiratory alkalotic condition, and option 3 reflects a metabolic acidotic condition.

The nurse is assessing for correct placement of a nasogastric tube. The nurse aspirates the stomach contents, checks the gastric pH, and notes a pH of 7.35. Based on this information, which action should the nurse take at this time? 1. Retest the pH using another strip. 2. Document that the nasogastric tube is in the correct place. 3. Check for placement by auscultating for air injected into the tube. 4. Call the health care provider to request a prescription for a chest radiograph.

4 Rationale: If the nasogastric tube is in the stomach, the pH of the contents will be acidic. Gastric aspirates have acidic pH values and should be 3.5 or lower. A pH of 7.35 indicates a neutral pH, which may indicate that the tube is no longer in the stomach. Based on this information, the nurse should call the health care provider to request a prescription for a chest radiograph to determine if placement is accurate. Retesting the pH using another strip is unnecessary and checking for placement by auscultating for air injected into the tube is not a definitive method of checking for tube placement. The nurse should not document that the tube is in the correct place because the data indicate this may not be the case.

Contact precautions are initiated for a client with a health care-associated (nosocomial) infection caused by methicillin-resistant Staphylococcus aureus. The nurse prepares to provide colostomy care and should obtain which protective items to perform this procedure? 1. Gloves and gown 2. Gloves and goggles 3. Gloves, gown, and shoe protectors 4. Gloves, gown, goggles, and a mask or face shield

4 Rationale: Splashes of body secretions can occur when providing colostomy care. Goggles and a mask or face shield are worn to protect the face and mucous membranes of the eyes during interventions that may produce splashes of blood, body fluids, secretions, or excretions. In addition, contact precautions require the use of gloves, and a gown should be worn if direct client contact is anticipated. Shoe protectors are not necessary.

A client brought to the emergency department states that he has accidentally been taking 2 times his prescribed dose of warfarin for the past week. After noting that the client has no evidence of obvious bleeding, the nurse plans to take which action? 1. Prepare to administer an antidote. 2. Draw a sample for type and crossmatch and transfuse the client. 3. Draw a sample for an activated partial thromboplastin time (aPTT) level. 4. Draw a sample for prothrombin time (PT) and international normalized ratio (INR).

4 Rationale: The action that the nurse should take is to draw a sample for PT and INR level to determine the client's anticoagulation status and risk for bleeding. These results will provide information as to how to best treat this client (e.g., if an antidote such as vitamin K or a blood transfusion is needed). The aPTT monitors the effects of heparin therapy.

A client with diabetes mellitus has a glycosylated hemoglobin A1c level of 9%. On the basis of this test result, the nurse plans to teach the client about the need for which measure? 1. Avoiding infection 2. Taking in adequate fluids 3. Preventing and recognizing hypoglycemia 4. Preventing and recognizing hyperglycemia

4 Rationale: The normal reference range for the glycosylated hemoglobin A1c is 4.0% to 6.0%. This test measures the amount of glucose that has become permanently bound to the red blood cells from circulating glucose. Erythrocytes live for about 120 days, giving feedback about blood glucose for past 120 days. Elevations in the blood glucose level will cause elevations in the amount of glycosylation. Thus the test is useful in identifying clients who have periods of hyperglycemia that are undetected in other ways. The estimated average glucose for a glycosylated hemoglobin A1c of 9% is 212 mg/dL (11.8 mmol/L). Elevations indicate continued need for teaching related to the prevention of hyperglycemic episodes. Test-Taking Strategy: Focus on the subject, a glycosylated hemoglobin A1c level of 9%. Recalling the normal value and that an elevated value indicates hyperglycemia will assist in directing you to the correct option.

The nurse is giving a report to an unlicensed assistive personnel (UAP) who will be caring for a client who has hand restraints (safety devices). The nurse instructs the UAP to check the skin integrity of the restrained hands how frequently? 1. Every 2 hours 2. Every 3 hours 3. Every 4 hours 4. Every 30 minutes

4 Rationale: The nurse should instruct the UAP to check safety devices and skin integrity every 30 minutes. The neurovascular and circulatory status of the extremity should also be checked every 30 minutes. In addition, the safety device should be removed at least every 2 hours to permit muscle exercise and to promote circulation. Agency guidelines regarding the use of safety devices should always be followed.

A client is demonstrating a positive Chvostek's sign. What action should the nurse take? A. Observe the client's pupil size and response to light. B. Ask the client about numbness or tingling in the hands. C. Assess the client's serum potassium level. D. Restrict dietary intake of calcium-rich foods.

A positive Chvostek's sign is an indication of hypocalcemia, so the client should be assessed for the subjective symptoms of hypocalcemia, such as numbness or tingling of the hands (B) or feet. (A and C) are unrelated assessment data. (D) is contraindicated because the client is hypocalcemic and needs additional dietary calcium. Correct Answer: B

When teaching a female client to perform intermittent self-catheterization, the nurse should ensure the client's ability to perform which action? A. Locate the perineum. B. Transfer to a commode. C. Attach the catheter to a drainage bag. D. Manipulate a syringe to inflate the balloon.

Correct Answer: A Adequate visualization or palpation of the perineum (A) is essential to ensure correct placement of the catheter. (B) is not necessary to perform self-catheterization. During a self-catheterization, the client typically allows the urine to drain into an open collection device, rather than a drainage bag (C), and uses a straight catheter without a balloon (D).

A male client with venous incompetence stands up and his blood pressure subsequently drops. Which finding should the nurse identify as a compensatory response? A. Bradycardia. B. Increase in pulse rate. C. Peripheral vasodilation. D. Increase in cardiac output.

Correct Answer: B When postural hypotension occurs, the body attempts to restore arterial pressure by stimulating the baroreceptors to increase the heart rate (B), not decrease it (A). Peripheral vasoconstriction, not dilation (C), of the veins and arterioles occurs with venous incompetence through the baro-receptor reflex. A decrease in cardiac output, not an increase (D), occurs when orthostatic hypotension occurs.

A client with chronic renal disease is admitted to the hospital for evaluation prior to a surgical procedure. Which laboratory test indicates the client's protein status for the longest length of time? A. Transferrin. B. Prealbumin. C. Serum albumin. D. Urine urea nitrogen

Correct Answer: C Serum albumin has a long half-life and is the best long-term indicator of the body's entry into a catabolic state following protein depletion from malnutrition or stress of chronic illness (C). While (A) is a good indicator of iron-binding capacity in a healthy adult, it is an unreliable measure in the client with a chronic illness. (B) has a short half-life, and is a sensitive indicator of recent catabolic changes, but it is not as effective as (C) in indicating long-term protein depletion. While (D) is a good indicator of a negative nitrogen balance, it is not as good an indicator of long-term protein catabolism as is (C).

A client is admitted with a stage four pressure ulcer that has a black, hardened surface and a light-pink wound bed with a malodorous green drainage. Which dressing is best for the nurse to use first? A. Hydrogel. B. Exudate absorber. C. Wet to moist dressing. D. Transparent adhesive film.

Correct Answer: C To provide moisture and loosen the necrotic tissue, the eschar should be covered first with wet to moist dressings (C), which are discontinued and then a hydrogel alginate can be placed in the prepared wound bed to prevent further damage of granulating any surrounding tissue. Although a hydrogel (A) liquefies necrotic tissue of slough and rehydrates the wound bed, it does not address wicking the purulent drainage from the wound. Exudate absorbers (B) provide a moist wound surface, absorb exudate, and support debridement, but do not prepare the wound bed for proper healing. Transparent dressings (D) are used to protect against contamination and friction while maintaining a clean moist surface.

Which client assessment data is most important for the nurse to consider before ambulating a postoperative client?A. Respiratory rate.B. Wound location.C. Pedal pulses.D. Pain rating.

Mobilization and ambulation increase oxygen use, so it is most important to assess the client's respiratory rate (A)before ambulation to determine tolerance for activity. (B, C, and D) are also important, but are of lower priority than (A).Correct Answer: A

Which nursing intervention is most beneficial in reducing the risk of urosepsis in a hospitalized client with an indwelling urinary catheter?A. Ensure that the client's perineal area is cleansed twice a day. B. Maintain accurate documentation of the fluid intake and output. C. Encourage frequent ambulation if allowed or regular turning if on bedrest. D. Obtain a prescription for removal of the catheter as soon as possible.

The best intervention to reduce the risk for urosepsis (spread of an infectious agent from the urinary tract to systemic circulation) is removal of the urinary catheter as quickly as possible (D). (A, B, and C) are helpful to reduce the risk of infection, but are of less priority than (D) in reducing the risk of urosepsis. Correct Answer: D

What action should the nurse implement when adding sterile liquids to a sterile field? A. Use an outdated sterile liquid if the bottle is sealed and has not been opened. B. Consider the sterile field contaminated if it becomes wet during the procedure. C. Remove the container cap and lay it with the inside facing down on the sterile field. D. Hold the container high and pour the solution into a receptacle at the back of the sterile field.

Wet or damp areas on a sterile field allow organisms to wick from the table surface and permeate into the sterile area, so the field is considered contaminated if it becomes wet (B). Outdated liquids may be contaminated and should be discarded, not used (A). The container's cap should be removed, placed facing up, and off the sterile field, not (C). To prevent contamination of the sterile field, liquids should be held close (6 inches) to the receptacle when pouring to prevent splashing, and the receptacle should be placed near the front edge to avoid reaching over or across the sterile field (D). Correct Answer: B

While the nurse is administering a bolus feeding to a client via nasogastric tube, the client begins to vomit. What action should the nurse implement first? A. Discontinue the administration of the bolus feeding. B. Auscultate the client's breath sounds bilaterally. C. Elevate the head of the bed to a high Fowler's position. D. Administer a PRN dose of a prescribed antiemetic.

When a client receiving a tube feeding begins to vomit, the nurse should first stop the feeding (A) to prevent further vomiting. (C) should then be implemented to reduce the risk of aspiration. After that, (B and D) can be implemented as indicated. Correct Answer: A