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Continuous venovenous hemofiltration is used to a. remove fluids and solutes through the process of convection. b. remove plasma water in cases of volume overload. c. remove plasma water and solutes by adding dialysate. d. combine ultrafiltration, convection, and dialysis.

ANS: A Continuous venovenous hemofiltration (CVVH) is used to remove fluids and solutes through the process of convection. Slow continuous ultrafiltration (SCUF) is used to remove plasma water in cases of volume overload. Continuous venovenous hemodialysis (CVVHD) is similar to CVVH in that ultrafiltration removes plasma water. It differs in that dialysate

Slow continuous ultrafiltration is also known as isolated ultrafiltration and is used to a. remove plasma water in cases of volume overload. b. remove fluids and solutes through the process of convection. c. remove plasma water and solutes by adding dialysate. d. combine ultrafiltration, convection, and dialysis.

ANS: A Slow continuous ultrafiltration (SCUF) is also known as isolated ultrafiltration and is used to remove plasma water in cases of volume overload. Continuous venovenous hemofiltration (CVVH) is used to remove fluids and solutes through the process of convection. Continuous venovenous hemodialysis (CVVHD) is similar to CVVH in that ultrafiltration removes plasma water. It differs in that dialysate solution is added around the hemofilter membranes to facilitate solute removal by the process of diffusion. Continuous venovenous hemodiafiltration (CVVHDF) combines ultrafiltration, convection, and dialysis to maximize fluid and solute removal.

Complications common to patients receiving hemodialysis for acute kidney injury include which of the following? (Select all that apply.) a. Hypotension b. Dysrhythmias c. Muscle cramps d. Hemolysis e. Air embolism

ANS: A, B Hypotension is common and is usually the result of preexisting hypovolemia, excessive amounts of fluid removal, or excessively rapid removal of fluid. Dysrhythmias may occur during dialysis. Causes of dysrhythmias include a rapid shift in the serum potassium level, clearance of antidysrhythmic medications, preexisting coronary artery disease, hypoxemia, or hypercalcemia from rapid influx of calcium from the dialysate solution. Muscle cramps occur more commonly in chronic renal failure. Hemolysis, air embolism, and hyperthermia are rare complications of hemodialysis.

A patient with severe burns had a dietitian consultation for nutritional support. The patient weighs 145 pounds. What recommendations by the dietitian does the nurse anticipate initiating? (Select all that apply.) a. At least 2307 kcal/day b. Juven formula c. 2 cal HN formula d. At least 1648 kcal/day e. Perative formula

ANS: A, B The severely stressed patient requires around 35 kcal/kg/day. This patient weighs 145 pounds, which is 65.9 kg. So this patient needs at least 2307 kcal/day. Juven is an appropriate formula; 2 cal HN is used for patients with heart and/or liver disease and Perative is used for patients with impaired GI function.

Which therapeutic interventions may be withdrawn or withheld from the terminally ill client? (Select all that apply.) a. Antibiotics b. Dialysis c. Nutrition d. Pain medications e. Simple nursing interventions such as repositioning and hygiene

ANS: A, B, C Any treatment that is life sustaining may be withheld from a terminally ill patient during the end of life. These treatments include nutrition, dialysis, fluids, antibiotics, respiratory support, therapeutic medications, and blood products. Any dose of analgesic or anxiolytic medication may be used to prevent suffering and should not be withdrawn. Dignity should be maintained during the course of dying. This would include ongoing provision of basic nursing care and comfort.

The trauma nurse understands which information related to the older trauma patient? (Select all that apply.) a. Falls are the leading cause of death in the older population. b. Physiologic capacity is an important predictor of outcome. c. Hypotension in the elderly can appear as normotension. d. Chronic diseases do not have much effect on the older trauma patient. e. Fractures to bones other than hips are uncommon from trauma.

ANS: A, B, C Falls are the leading cause of death in the elderly and frequently result in fractures to many different bones, not just hips. Decreased physiologic reserve leads to poorer outcomes. Hypertension can mask hypotension by the blood pressure appearing to be normal. That is just one example of how chronic disease can complicate the picture of an older trauma patient.

Which of the following statements is true about insulin and parenteral nutrition? (Select all that apply.) a. The amount of parenteral insulin is adjusted based on the previous 24-hour laboratory values. b. Insulin may be added to a parenteral nutrition solution. c. Subcutaneous insulin is used on a sliding scale during parenteral nutrition. d. Supplemental insulin is rarely required for patients receiving parenteral nutrition. e. Lingering hyperglycemia after parenteral nutrition has stopped requires continuing insulin.

ANS: A, B, C Hyperglycemia is common when receiving parenteral nutrition; insulin may be administered on a sliding scale for glucose control and/or added to the parenteral solution. The amount of insulin added to the parenteral solution is calculated based on the previous 24-hour laboratory values. Hypoglycemia can result from continuing the insulin after the parenteral nutrition is discontinued.

Noninvasive diagnostic procedures used to determine kidney function include which of the following? (Select all that apply.) a. Kidney, ureter, bladder (KUB) x-ray b. Renal ultrasound c. Magnetic resonance imaging (MRI) d. Intravenous pyelography (IVP) e. Renal angiography

ANS: A, B, C Noninvasive diagnostic procedures are usually performed before any invasive diagnostic procedures are conducted. Noninvasive diagnostic procedures that assess the renal system are radiography of the kidneys, ureters, and bladder (KUB); renal ultrasonography; and magnetic resonance imaging. Invasive diagnostic procedures for assessing the renal system include intravenous pyelography, computed tomography, renal angiography, renal scanning, and renal biopsy.

Palliation may include (Select all that apply.) a. relieving pain. b. relieving nausea. c. psychological support. d. withdrawing life-support interventions. e. withholding tube feedings.

ANS: A, B, C Palliation includes the relief of symptoms that may have a negative effect on the family or the patient.

Which of the following statements apply to trauma patients and their potential complications? (Select all that apply.) a. Indwelling urinary catheters are a source of infection. b. Patients often develop infection and sepsis secondary to central line catheters. c. Pneumonia is often an adverse outcome of mechanical ventilation. d. Wounds require sterile dressings to prevent infection.

ANS: A, B, C Prevention of infection is essential in the care of trauma and postsurgical patients. Removing invasive devices when they are no longer needed for monitoring and ensuring aseptic care of devices are important nursing care considerations for management of indwelling urinary catheters, central lines, and airway adjuncts. Wounds, other than the immediate postoperative dressing, are not required to be sterile. Aseptic technique is used for wound care.

Nursing priorities to prevent ineffective coagulation include which of the following? (Select all that apply.) a. Prevention of hypothermia b. Administration of fresh frozen plasma as ordered c. Administration of potassium as ordered d. Administration of calcium as ordered e. Monitoring CBC and coagulation studies

ANS: A, B, D Ineffective coagulation is a serious complication for a trauma patient that can be prevented by maintaining normothermia, evaluating and treating for hypocalcemia, administering clotting factors found in fresh frozen plasma or platelets, and evaluating and treating metabolic acidosis. Evaluating and treating serum potassium levels is important for effective cardiac muscle function, not coagulation. Monitoring lab values does not prevent an event from occurring although it can allow the nurse to notice it sooner.

Which of the following statements about the pain management of a burn victim are true? (Select all that apply.) a. Additional pain medication may be needed because of rapid body metabolism. b. Pain medication should be given before procedures such as debridement, dressing changes, and physical therapy. c. Patients with a history of drug and alcohol abuse will require higher doses of pain medication. d. The intramuscular route is preferred for pain medication administration. e. Patients with a history of drug and alcohol abuse should not need as much pain medication as other patients.

ANS: A, B, C The rapid metabolism associated with burn injury may require additional pain medication. Many of the procedures associated with burn wounds are painful, such as dressing changes. Adequate pain medication should be given before the procedures. Edema in burned patients alters the absorption of medications that are injected intramuscularly; therefore, drugs must be administered by the IV route. A history of drug and/or alcohol abuse does not change the pain experience for this patient; they will need as much pain medication as other burn patients and in fact may need more due to increased tolerance to the effects of the medication.

Which of the following factors predispose the critically ill patient to pain and anxiety? (Select all that apply.) a. Inability to communicate b. Invasive procedures c. Monitoring devices d. Nursing care e. Preexisting conditions

ANS: A, B, C, D, E All of these factors predispose the patient to pain or anxiety.

Factors in the critical care unit that may predispose the client to increased pain and anxiety include: (Select all that apply.) a. an endotracheal tube. b. frequent vital signs. c. monitor alarms. d. room temperature. e. hostile environment.

ANS: A, B, C, D, E Anxiety is likely to result from loss of control, the inability to communicate, continuous noise and lighting, excessive stimulation (including repeated vital sign measurements), lack of mobility, and uncomfortable room temperatures. Increased anxiety levels often lead to increased pain perception. Environments that are perceived as hostile also contribut

Which of the following are accepted nonpharmacological approaches to managing pain and/or anxiety in critically ill patients? (Select all that apply.) a. Environmental manipulation b. Explanations of monitoring equipment c. Guided imagery d. Music therapy e. Provision of personal items

ANS: A, B, C, D, E Manipulating the environment so that it appears less hostile helps decrease anxiety, as does continually reorienting the patient. Focus techniques such as guided imagery and music therapy can create a state of relaxation. Personal items can reduce anxiety and provide a pleasant distraction.

When providing palliative care, the nurse must keep in mind that the family may include which of the following? (Select all that apply.) a. Unmarried life partners of same sex b. Unmarried life partners of opposite sex c. Roommates d. Close friends e. Parents

ANS: A, B, C, D, E The definition of family varies and may include unmarried life partners of the same or opposite sex, close friends, and other close individuals who have no legal relationship with the patient. The patient gets to define who will be regarded as "family."

Which interventions can the nurse use to facilitate communication with patients and families who are in the process of making decisions regarding end-of-life care options? (Select all that apply.) a. Communication of uniform messages from all health care team members b. An integrated plan of care that is developed collaboratively by the patient, family, and health care team c. Facilitation of continuity of care through accurate shift-to-shift and transfer reports d. Limitation of time for families to express feelings in order to control family grief e. Reassuring the patient and family that they will not be abandoned as the goals of care shift from aggressive treatment to comfort care

ANS: A, B, C, E Effective and consistent communication among the patient, family, and health care team members is required to promote positive outcomes during end-of-life care. Family members should be provided ample time to express feelings in order to improve the level of satisfaction and prevent dysfunctional bereavement patterns.

An autograft is used to optimally treat a partial- or full-thickness wound that (Select all that apply.) a. involves a joint. b. involves the face, hands, or feet. c. is infected. d. requires more than 2 weeks for healing. e. involves very large surface areas.

ANS: A, B, D Autograft skin will allow for faster healing with less scar formation and a shorter hospitalization. Grafting is not done while a burn is infected. There may not be enough healthy skin to graft large areas.

In the critically ill patient, an incomplete assessment and/or management of pain or anxiety may be hampered by which of the following? (Select all that apply.) a. Administration of neuromuscular blocking agents b. Delirium c. Effective nurse communication and assessment skills d. Nonverbal patients e. Ventilated patient

ANS: A, B, D Delirium appears in approximately 80% of patients in the intensive care unit. Delirium is characterized by changing mental status, inattention, disorganized thinking, and altered levels of consciousness. Patients in the intensive care unit may not be able to verbalize because of the presence of an artificial airway, sedative medication, neuromuscular blocking agents, or brain injury. Effective nurse-to-patient communication and assessment skills would facilitate assessment of pain and anxiety. There are tools and assessment methods to assess pain in ventilated patients.

The nurse is caring for a patient with burns to the hands, feet, and major joints. The nurse plans care to include which of the following? (Select all that apply.) a. Applying splints that maintain the extremity in an extended position b. Implementing passive or active range-of-motion exercises c. Keeping the limbs as immobile as possible d. Wrapping fingers and toes individually with bandages e. Administering muscle relaxants around the clock

ANS: A, B, D It is important to avoid immobility in patients with burns of the hands, feet, or major joints. Measures must be taken to maintain the function of the hands, feet, and major joints. Nursing interventions to maintain range of motion, applying splints to keep the extremities

The nurse is caring for a postoperative patient in the critical care unit. The physician has ordered patient-controlled analgesia (PCA) for the patient. The nurse understands that the PCA: (Select all that apply.) a. is a safe and effective method for administering analgesia. b. has potentially fewer side effects than other routes of analgesic administration. c. is an ideal method to provide most critically ill patients some control over their treatment. d. provides good quality analgesia. e. does not work well without family assistance.

ANS: A, B, D PCA is safe and effective, provides good-quality analgesia, and has potentially fewer side effects than other routes. PCA management is rarely appropriate for critically ill patients because most patients are unable to depress the button, or they are too ill to manage their pain effectively. If the patient is cognitively intact, family assistance is not needed to use this modality and is not advisable; the patient needs to be able to push the button.

Which statements about total parenteral nutrition are correct? (Select all that apply.) a. assessing fluid volume status and preventing infection are important nursing considerations. b. fingerstick glucose levels are assessed every 6 hours and prn. c. total parenteral nutrition is administered through a feeding tube and pump. d. total parenteral nutrition with added lipids provides adequate levels of protein, carbohydrates, and fats. e. soy-based lipids should not be given during the first week of a critical illness.

ANS: A, B, D, E All are correct except administration via a feeding tube and pump. A tube and pump are used to deliver enteral nutrition.

Choose the items that are common to both pain and anxiety. (Select all that apply.) a. Cyclical exacerbation of one another b. Require good nursing assessment for proper treatment c. Response only to real phenomena d. Subjective in nature e. Perception may be influenced by prior experience

ANS: A, B, D, E Both pain and anxiety are subjective in nature. One can exacerbate the other in a vicious cycle that often requires good nursing assessment to manage the precipitating problem and break the cycle. Anxiety is a response to a real or perceived fear. Pain is a response to real or "phantom" phenomenon but always involves transmission of nerve impulses. Both relate to the patient's perceptions of pain and fear. Previous experiences of both pain and/or anxiety can influence the patient's perception of both. Anxiety is a response to real or perceived fear, and pain is a response to a real or "phantom" phenomenon.

Which interventions can the nurse implement to assist the patient's family in coping with the traumatic event? (Select all that apply.) a. Establish a family spokesperson and communication system. b. Ask the family about their normal coping mechanisms. c. Limit visitation to set times throughout the day. d. Coordinate a family conference. e. Determine how the family perceives the event

ANS: A, B, D, E The trauma team can assist the patient and family in crisis by helping them establish a consistent communication process between the health care team and family. Other interventions include exploring the family's perceptions of the event, support systems, and coping mechanisms. Family conferences early in the emergent phase and frequently during the critical care phase assist with communication and with understanding the patient's and family's expectations for care. Limiting visitation will not assist the patient or the family's ability to cope with the traumatic event.

Anxiety differs from pain in that: (Select all that apply.) a. it is confined to neurological processes in the brain. b. it is linked to reward and punishment centers in the limbic system. c. it is subjective. d. there is no actual tissue injury. e. it can be increased by noise and light.

ANS: A, B, D, E Unlike pain, anxiety is linked to the reward and punishment centers in the limbic system of the brain. It is totally neurological and does not involve tissue injury. Like pain, it is a subjective phenomenon. Noise, light, and other stimuli can increase the intensity of anxiety. Both anxiety and pain are subjective in nature.

Which complications may manifest after an electrical injury? (Select all that apply.) a. Long bone fractures b. Cardiac dysrhythmias c. Hypertension d. Compartment syndrome of extremities e. Dark brown urine f. Peptic ulcer disease g. Acute cataract formation h. Seizures

ANS: A, B, D, E, G, H Electrical injuries vary in severity of injury by the intensity of energy exposed to the body. Manifestations and complications may include cardiac dysrhythmias or cardiopulmonary arrest, hypoxia, deep tissue necrosis, rhabdomyolysis and acute kidney injury, compartment syndrome, long bone fractures, acute cataract formation, and neurological deficits (including seizures). Hypertension and peptic ulcer disease are not direct consequences of electrical burn injuries,

Select interventions that may be included during "terminal weaning" include which of the following? (Select all that apply.) a. Complete extubation following ventilator withdrawal b. Discontinuation of artificial ventilation but maintenance of the artificial airway c. Discontinuation of anxiolytic and pain medications d. Titration of ventilator support based upon blood gas determinations e. Titration of ventilator support to minimal levels based upon patient assessment of comfort

ANS: A, B, E "Terminal weaning" may include titration of ventilator support to minimal levels, removal of the ventilator with maintenance of the artificial airway, and complete extubation. Pain and anxiolytic medications may be required to control dyspnea and anxiety that may accompany ventilator withdrawal. Blood gas determinations would be used in therapeutic ventilator management.

When caring for the patient with upper GI bleeding, the nurse assesses for which of the following? (Select all that apply.) a. Severity of blood loss b. Hemodynamic stability c. Vital signs every 30 minutes d. Signs of hypervolemic shock e. Necessity for fluid resuscitation

ANS: A, B, E Initial evaluation of the patient with upper GI bleeding involves a rapid assessment of the severity of blood loss, hemodynamic stability and the necessity for fluid resuscitation, and frequent monitoring of vital signs and assessments of body systems for signs of hypovolemic shock. Vital signs should be monitored at least every 15 minutes.

Nursing priorities for the management of acute pancreatitis include: (Select all that apply.) a. managing respiratory dysfunction. b. assessing and maintaining electrolyte balance. c. withholding analgesics that could mask abdominal discomfort. d. stimulating gastric content motility into the duodenum. e. utilizing supportive therapies aimed at decreasing gastrin release.

ANS: A, B, E Nursing and medical priorities for the management of acute pancreatitis include several interventions. Managing respiratory dysfunction is a high priority. Fluids and electrolytes are replaced to maintain or replenish vascular volume and electrolyte balance. Analgesics are given for pain control, and supportive therapies are aimed at decreasing gastrin release from the stomach and preventing the gastric contents from entering the duodenum.

Calorie-dense feedings: (Select all that apply.) a. are most useful in heart failure and liver disease. b. are most useful in malabsorption syndromes. c. contain 2 kcal/mL and 70 g protein/L. d. include increased fiber. e. are especially good for patients with lung disease.

ANS: A, C Calorie-dense feedings are used when volume should be minimized and protein requirements are high, such as in heart failure or liver disease. They contain 2 kcal/mL and 70 g protein/L. Specific formulas, such as Oxepa, are available for lung disease.

Which of the following patients would require greater amounts of fluid resuscitation to prevent acute kidney injury associated with rhabdomyolysis? (Select all that apply.) a. Crush injury to right arm b. Gunshot wound to the abdomen c. Lightning strike of the left arm and chest d. Pulmonary contusion and rib fracture e. Penetrating wound to both legs

ANS: A, C Causes of rhabdomyolysis include crush injuries, compartment syndrome, burns, and injuries from being struck by lightning. Acute kidney injury may result from a gunshot wound related to prolonged hypotension. Acute kidney injury would not have a direct cause associated with a pulmonary contusion or penetrating wounds.

In the healthy individual, pain and anxiety: (Select all that apply.) a. activate the sympathetic nervous system (SNS). b. decrease stress levels. c. help remove one from harm. d. increase performance levels. e. limit sympathetic nervous system activity.

ANS: A, C, D In the healthy person, pain and anxiety are adaptive mechanisms used to increase performance levels or to remove one from potential harm. The "fight or flight" response occurs in response to pain and/or anxiety and involves the activation of the sympathetic nervous system. Pain and anxiety, however, can induce significant stress. The SNS is activated, not limited, by pain and/or anxiety.

Which of the following statements regarding pain and anxiety are true? (Select all that apply.) a. Anxiety is a state marked by apprehension, agitation, autonomic arousal, and/or fearful withdrawal. b. Critically ill patients often experience anxiety, but they rarely experience pain. c. Pain and anxiety are often interrelated and may be difficult to differentiate because their physiological and behavioral manifestations are similar. d. Pain is defined by each patient; it is whatever the person experiencing the pain says it is. e. While anxiety is unpleasant, it does not contribute to mortality or morbidity of the critically ill patient.

ANS: A, C, D Pain is defined by each patient, anxiety is associated with marked apprehension, and pain and anxiety are often interrelated. Critically ill patients commonly have both pain and anxiety. Anxiety does increase both morbidity and mortality in critically ill patients, especially those with cardiovascular disease.

A patient requires pancuronium as part of treatment of refractive increased intracranial pressure. The nursing care for this patient includes: (Select all that apply.) a. administration of sedatives concurrently with neuromuscular blockade. b. dangling the patient's feet over the edge of the bed and assisting the patient to sit up in a chair at least twice each day. c. ensuring that deep vein thrombosis prophylaxis is initiated. d. providing interventions for eye care, oral care, and skin care. e. ensuring good nutrition with frequent feedings throughout the day.

ANS: A, C, D Pancuronium is a neuromuscular blocking agent (NMB) resulting in complete paralysis of the patient. Patients receiving NMB must be provided total care, including eye, skin, and oral care interventions. Patients are at high risk for deep vein thrombosis secondary to drug-induced paralysis and bed rest. Sedatives must be administered concurrently with NMB, because NMBs have no sedative effects. Although many critically ill patients are assisted to the chair, chair activity is not appropriate for patients receiving NMB; passive exercise is most appropriate. Feeding the patient on an NMB orally is not possible.

During the assessment of a patient after a high-speed motor vehicle crash, which of the following findings would increase the nurse's suspicion of a pulmonary contusion? (Select all that apply.) a. Chest wall ecchymosis b. Diminished or absent breath sounds c. Pink-tinged or blood secretions d. Signs of hypoxia on room air e. Paradoxical chest wall movement

ANS: A, C, D Pulmonary contusion is a serious injury associated with deceleration or blast forces and is a common cause of death after chest trauma. The clinical presentation includes chest wall abrasions, ecchymosis, bloody secretions, and a partial pressure of arterial oxygen (PaO2) of less than 60 mm Hg while breathing room air. The bruised lung tissue becomes edematous, resulting in hypoxia and respiratory distress. Absence of breath sounds is more suggestive of atelectasis or a collapsed lung. Paradoxical chest wall movement is indicative of flail chest.

The patient is admitted with acute kidney injury from a postrenal cause. Acceptable treatments for that diagnosis include: (Select all that apply.) a. bladder catheterization. b. increasing fluid volume intake. c. ureteral stenting. d. placement of nephrostomy tubes. e. increasing cardiac output.

ANS: A, C, D The location of the obstruction in the urinary tract determines the method by which the obstruction is treated and may include bladder catheterization, ureteral stenting, or the placement of nephrostomy tubes. Fluid volume intake may be recommended to treat prerenal causes of AKI. Increasing cardiac output would be indicated in certain prerenal causes of AKI.

The patient is in the critical care unit and will receive dialysis this morning. The nurse will (Select all that apply.) a. evaluate morning laboratory results and report abnormal results. b. administer the patient's antihypertensive medications. c. assess the dialysis access site and report abnormalities. d. weigh the patient to monitor fluid status. e. give all medications except for antihypertensive medications.

ANS: A, C, D The patient receiving hemodialysis requires specialized monitoring and interventions by the critical care nurse. Laboratory values are monitored and abnormal results reported to the nephrologist and dialysis staff. The patient is weighed daily to monitor fluid status. On the day of dialysis, dialyzable (water-soluble) medications are not given until after treatment. The dialysis nurse or pharmacist can be consulted to determine which medications to withhold or administer. Supplemental doses are administered as ordered after dialysis.

The nurse is assessing the critically ill patient for delirium. The nurse recognizes which characteristics that indicate hyperactive delirium? (Select all that apply.) a. Agitation b. Apathy c. Biting d. Hitting e. Restlessness

ANS: A, C, D, E All except for apathy are characteristics of hyperactive delirium. Apathy is seen in hypoactive cases.

Which of the following findings require immediate nursing interventions in a patient with a traumatic brain injury? (Select all that apply.) a. Mean arterial pressure 48 mm Hg b. Elevated serum blood alcohol level c. Nonreactive pupils d. Respiratory rate of 10 breaths/min e. Open skull fracture

ANS: A, C, D, E Rapid assessment of patients with neurological injury is vital to the treatment of patients with traumatic brain injury. Preventing hypotension (mean arterial pressure less than 50 mm Hg) is essential to maintain cerebral perfusion; nonreactive pupils are an abnormal finding and require immediate attention to evaluate the cause. Adequate oxygenation and ventilation are necessary to deliver oxygen to the brain; thus, a respiratory rate of 10 requires further evaluation. An open skull fracture leaves the patient extremely vulnerable to infection in the brain. An elevated blood alcohol level interferes with the ability to conduct a neurological examination but does not require immediate intervention.

The most common reasons for initiating dialysis in acute kidney injury include which of the following? (Select all that apply.) a. Acidosis b. Hypokalemia c. Volume overload d. Hyperkalemia e. Uremia

ANS: A, C, D, E The most common reasons for initiating dialysis in acute kidney injury include acidosis, hyperkalemia, volume overload, and uremia. Dialysis is usually started early in the course of the renal dysfunction before uremic complications occur. In addition, dialysis may be started for fluid management when total parenteral nutrition is administered.

Which of the following infection control strategies should the nurse implement to decrease the risk of infection in the burn-injured patient? (Select all that apply.) a. Apply topical antibacterial wound ointments/dressings. b. Change indwelling urinary catheter every 7 days. c. Daily assess the need for central IV catheters. d. Restrict family visitation. e. Maintain strict aseptic technique during burn wound management.

ANS: A, C, E Nurses can help reduce the risk of infection by using topical antibacterial wound ointments and dressings as prescribed, daily questioning the need for invasive devices such as central IV access and indwelling urinary catheters, and maintaining aseptic technique during all care provided to the patient. Changing the indwelling urinary catheter will not reduce the risk of infection; wound care is achieved by aseptic technique; and restricting family is not an intervention related to infection prevention.

The nurse is caring for a patient who is intubated and on a ventilator following extensive abdominal surgery. Although the patient is responsive, the nurse is not able to read the patient's lips as the patient attempts to mouth the words. Which of the following assessment tools would be the most appropriate for the nurse to use when assessing the patient's pain level? (Select all that apply.) a. The FACES scale b. Pain Intensity Scale c. The PQRST method d. The Visual Analogue Scale e. The CAM tool

ANS: A, D The PQRST method and the Pain Intensity Scale require verbalization and/or writing to communicate pain level. The FACES scale and the Visual Analogue Scale can be used by simply having the patient point to the appropriate place. Because of this, they are the easiest to use with children, people with language barriers, and intubated patients. The CAM tool is used to assess delirium.

Identify which substances in the glomerular filtrate would indicate a problem with renal function. (Select all that apply.) a. Protein b. Sodium c. Creatinine d. Red blood cells e. Uric acid

ANS: A, D The glomerular capillary membrane is approximately 100 times more permeable than other capillaries. It acts as a high-efficiency sieve and normally allows only substances with a certain molecular weight to cross. Normal glomerular filtrate is basically protein free and contains electrolytes, including sodium, chloride, and phosphate, and nitrogenous waste products, such as creatinine, urea, and uric acid, in amounts similar to those in plasma. Red blood cells, albumin, and globulin are too large to pass through the healthy glomerular

9. The nurse working in a trauma center administers blood products to a severely hemorrhaging trauma patient in a 1:1:1 ratio. Which blood products does the nurse include in this transfusion protocol? (Select all that apply.) a. Whole blood b. Universal donor blood only c. Red blood cells d. Platelets e. Plasma

ANS: C, D, E The 1:1:1 transfusion protocol is an evidence-based practice consisting of transfusions of red blood cells, platelets, and plasma for optimal outcomes. Whole blood and universal donor blood exclusively are not included.

Which of the following statements are true regarding fluid resuscitation during the care of a trauma patient? (Select all that apply.) a. 5% Dextrose is recommended for rapid crystalloid infusion. b. IV fluids may need to be warmed to prevent hypothermia. c. Massive transfusions should be avoided to improve patient outcomes. d. Only fully crossmatched blood products are administered. e. Hypertonic saline solutions are often used during initial resuscitation.

ANS: B, C Lactated Ringer's and normal saline are the crystalloids of choice in trauma resuscitation. Because hypothermia is a concern, fluids should be warmed. Massive blood transfusions are associated with poor outcomes. Crossmatched blood is preferred, but blood type O, universal donor blood, can be administered in an emergency. Isotonic solutions are used predominantly during fluid resuscitation.

The nurse is caring for a critically ill patient with respiratory failure who is being treated with mechanical ventilation. As part of the patient's care to prevent stress ulcers, the nurse would provide: (Select all that apply.) a. vagal stimulation. b. proton pump inhibitors. c. anticholinergic drugs. d. antacids. e. cholinergic drugs.

ANS: B, C, D Administration of antacids and H2-receptor blockers, and the suppression of vagal stimulation with anticholinergic drugs and proton pump inhibitors (PPI) are effective forms of therapy.

Risks of total parenteral nutrition include: (Select all that apply.) a. diarrhea. b. elevated blood sugar. c. infection at the catheter site. d. volume overload. e. aspiration.

ANS: B, C, D Diarrhea and aspiration are more common with enteral tube feedings; the other risks are common with total parenteral nutrition.

It is important to prevent hypothermia in the trauma patient because hypothermia is associated with which of the following? (Select all that apply.) a. ARDS b. Coagulopathies c. Dysrhythmias d. Myocardial dysfunction e. Fat embolism

ANS: B, C, D Prolonged hypothermia is associated with the development of myocardial dysfunction, coagulopathies, reduced perfusion, and dysrhythmias (bradycardia and atrial or ventricular fibrillation). ARDS is a complication associated with excessive inflammation and overresuscitation. Fat embolism is often seen with long bone fractures.

Vascular sounds such as bruits, heard in the abdomen during physical assessment, may indicate which of the following? (Select all that apply.) a. Obstructed portal circulation b. Dilated vessels c. Tortuous vessels d. Constricted vessels e. Presence of an abscess

ANS: B, C, D Vascular sounds such as bruits may be heard and may indicate dilated, tortuous, or constricted vessels. Venous hums are also normally heard from the inferior vena cava. A hum in the periumbilical region in a patient with cirrhosis indicates obstructed portal circulation. Peritoneal friction rubs may also be heard and may indicate infection, abscess, or tumor.

The patient is admitted with end-stage liver disease. The nurse evaluates the patient for which of the following? (Select all that apply.) a. Hypoglycemia b. Malnutrition c. Ascites d. Hypercoagulation e. Disseminated intravascular coagulation

ANS: B, C, E Altered carbohydrate metabolism may result in unstable blood glucose levels. The serum glucose level is usually increased to more than 200 mg/dL. This condition is termed cirrhotic diabetes. Altered carbohydrate metabolism may also result in malnutrition and a decreased stress response. Protein metabolism, albumin synthesis, and serum albumin levels are decreased. Low albumin levels are also thought to be associated with the development of ascites, a complication of hepatic failure. Fibrinogen is an essential protein that is necessary for normal clotting. A low plasma fibrinogen level, coupled with decreased synthesis of many blood-clotting factors, predisposes the patient to bleeding. Clinical signs and symptoms range from bruising and nasal and gingival bleeding to frank hemorrhage. Disseminated intravascular coagulation may also develop.

Which of the following factors increase the burn patient's risk for venous thromboembolism? (Select all that apply.) a. Burn injury less than 10% b. Bed rest c. Burns to lower extremities d. Electrical burn injury e. Delayed fluid resuscitation

ANS: B, C, E Venous thromboembolism (VTE) is a significant risk for patients who have thermal injury, venous stasis associated with immobility/bed rest, hypercoagulability seen with burn injuries greater than 10% TBSA, and hypovolemia associated with delayed fluid resuscitation. Burns to lower extremities will limit mobility and use of sequential compression devices, increasing the potential risk for VTE. Electrical burn injury may pose a risk for VTE; however, VTE is more closely associated with thermal injuries greater than 10% TBSA.

Which interventions are critical during intravenous lipid administration? (Select all that apply.) a. Assess glucose levels every 6 hours. b. Change the tubing every 24 hours. c. Hold lipids when administering antibiotics through the same line. d. Monitor triglyceride levels periodically. e. Maintain elevation of the head of the bed.

ANS: B, D Lipids are very good media for bacterial growth; lipid tubing should be changed every 24 hours. Triglyceride levels must be monitored until stable when administering lipids. Glucose is monitored during treatment with parenteral nutrition, which contains a high level of glucose. Medications are not administered through the IV lines containing lipids or parenteral nutrition. Elevating the head of the bed is important for enteral (tube) feedings to prevent aspiration.

Continuous venovenous hemodialysis is used to a. remove fluids and solutes through the process of convection. b. remove plasma water in cases of volume overload. c. remove plasma water and solutes by adding dialysate. d. combine ultrafiltration, convection and dialysis

ANS: C Continuous venovenous hemodialysis (CVVHD) is similar to CVVH in that ultrafiltration removes plasma water. It differs in that dialysate solution is added around the hemofilter membranes to facilitate solute removal by the process of diffusion. Continuous venovenous hemofiltration (CVVH) is used to remove fluids and solutes through the process of convection. Slow continuous ultrafiltration (SCUF) is also known as isolated ultrafiltration and is used to remove plasma water in cases of volume overload. Continuous venovenous hemodiafiltration (CVVHDF) combines ultrafiltration, convection, and dialysis to maximize fluid and solute removal.

Nonpharmacological approaches to pain and/or anxiety that may best meet the needs of critically ill patients include: (Select all that apply.) a. anaerobic exercise. b. art therapy. c. guided imagery. d. music therapy. e. animal therapy.

ANS: C, D, E Guided imagery is a powerful technique for controlling pain and anxiety, especially that associated with painful procedures. Similar to guided imagery, a music therapy program offers patients a diversionary technique for pain and anxiety relief. Likewise animal therapy has many benefits for the critically ill patient. Anaerobic exercise is not a nonpharmacological approach for managing pain and anxiety. Most critically ill patients are not able to participate in art therapy.