Critical Care Nursing Exam Questions

Questions 81

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Critical Care Nursing Exam Questions Questions

Question 1 of 5

The nurse is caring for a patient whose ventilator settings i nclude 15 cm H O of positive end-expiratory pressure (PEEP). The nurse understands that although beneficial, PEEP may result in what possible problem?

Correct Answer: D

Rationale: Rationale for Correct Answer (D - Low cardiac output secondary to increased intrathoracic pressure): 1. PEEP increases intrathoracic pressure, which can impede venous return to the heart. 2. Impaired venous return reduces preload, leading to decreased cardiac output. 3. Decreased cardiac output can result in inadequate tissue perfusion and oxygenation. 4. Therefore, PEEP may cause low cardiac output due to increased intrathoracic pressure. Summary of Incorrect Choices: A. Fluid overload is not directly related to PEEP but more to fluid administration or kidney function. B. High cardiac index is unlikely as PEEP can decrease cardiac output. C. Hypoxemia is not a direct result of PEEP but may occur due to other factors like inadequate ventilation or oxygenation settings.

Question 2 of 5

The nurse is caring for a patient whose ventilator settings i nclude 15 cm H O of positive end-expiratory pressure (PEEP). The nurse understands that although beneficial, PEEP may result in what possible problem?

Correct Answer: D

Rationale: Rationale for Correct Answer (D - Low cardiac output secondary to increased intrathoracic pressure): 1. PEEP increases intrathoracic pressure, which can impede venous return to the heart. 2. Impaired venous return reduces preload, leading to decreased cardiac output. 3. Decreased cardiac output can result in inadequate tissue perfusion and oxygenation. 4. Therefore, PEEP may cause low cardiac output due to increased intrathoracic pressure. Summary of Incorrect Choices: A. Fluid overload is not directly related to PEEP but more to fluid administration or kidney function. B. High cardiac index is unlikely as PEEP can decrease cardiac output. C. Hypoxemia is not a direct result of PEEP but may occur due to other factors like inadequate ventilation or oxygenation settings.

Question 3 of 5

Complications common to patients receiving hemodialysis for acute kidney injury include which of the following? (Select all that apply.)

Correct Answer: A

Rationale: The correct answer is A, hypotension. During hemodialysis for acute kidney injury, fluid removal can lead to hypotension due to rapid changes in blood volume. This can cause dizziness, weakness, and even loss of consciousness. Dysrhythmias (choice B) are less common but can occur due to electrolyte imbalances. Muscle cramps (choice C) may occur during or after dialysis due to electrolyte imbalances or fluid shifts, but they are not as common as hypotension. Hemolysis (choice D) is not a common complication of hemodialysis for acute kidney injury, as it is more commonly associated with issues related to the dialysis machine or blood tubing.

Question 4 of 5

The patient is admitted with complaints of general malaise and fatigue, along with a decreased urinary output. The patient�s urinalysis shows coarse, muddy brown granular casts and hematuria. The nurse determines that the patient has:

Correct Answer: C

Rationale: The correct answer is C: intrarenal disease, probably acute tubular necrosis. The patient's symptoms of general malaise, fatigue, decreased urinary output, along with the presence of coarse, muddy brown granular casts and hematuria in the urinalysis indicate kidney damage. Acute tubular necrosis is a common cause of acute kidney injury characterized by damage to the renal tubules, leading to impaired kidney function. The presence of granular casts and hematuria suggests tubular injury and bleeding within the kidney. Choices A and B are incorrect as they refer to prerenal and postrenal causes of kidney injury, respectively, which do not align with the patient's symptoms and urinalysis findings. Choice D is incorrect as a urinary tract infection would typically present with different symptoms and urinalysis findings.

Question 5 of 5

The nurse is discussing the role of hospice care with a patient and family. Which statement by the nurse accurately describes hospice care?

Correct Answer: B

Rationale: The correct answer is B because hospice care indeed focuses on providing support and comfort for patients at the end of life. This is achieved through pain management, emotional support, and enhancing quality of life. Choice A is incorrect because hospice care does not aim to cure serious illnesses but rather to provide comfort and care. Choice C is incorrect as hospice care is not limited to patients with cancer but is available to individuals with various terminal illnesses. Choice D is incorrect as hospice care does not focus on extending life expectancy but rather on improving the quality of life during the end-of-life period.

Similar Questions

The nurse is discussing the role of hospice care with a patient and family. Which statement by the nurse accurately describes hospice care?
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