Critical Care Nursing Exam Questions

Questions 81

ATI RN

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Critical Care Nursing Exam Questions Questions

Question 1 of 5

To prevent any unwanted resuscitation after life-sustaininga btirrbe.acotmm/teenstt s have been withdrawn, the nurse should ensure that what intervention has been im plemented?

Correct Answer: A

Rationale: The correct answer is A because writing DNR orders before discontinuation of life-sustaining treatments ensures clear communication and legal documentation of the patient's wishes. Choice B is incorrect as family support is essential in end-of-life care. Choice C is incorrect as DNR orders should be established before withdrawing treatment. Choice D is incorrect as the DNR order should be in place before shift change for immediate implementation if needed.

Question 2 of 5

The client has been in the CCU for several weeks and has been very unstable. One family member stays at the bedside constantly and even naps in a bedside chair. The nurse understands that the family member is exhibiting which family member response to critical illness?

Correct Answer: C

Rationale: The correct answer is C: Trying to maintain a level of control over the situation. The family member staying at the bedside constantly and even napping there is likely trying to cope with the stressful situation by maintaining a sense of control and connection to the patient. This behavior can be a way for the family member to feel more involved and helpful during a time of uncertainty and powerlessness. Choices A and B involve negative assumptions about the family member's intentions without evidence. Choice D may be a result of the family member's actions but does not address the underlying motivation for their behavior.

Question 3 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 4 of 5

The nurse is caring for a 70-kg patient in septic shock with a pulmonary artery catheter. Which hemodynamic value indicates an appropriate response to therapy aimed at enhancing oxygen delivery to the organs and tissues?

Correct Answer: C

Rationale: The correct answer is C: Mixed venous (SvO2) of 40%. In septic shock, improving oxygen delivery to tissues is vital. SvO2 reflects the balance between oxygen delivery and consumption. A value of 40% indicates adequate oxygen delivery to tissues. A: Arterial lactate level of 1.0 mEq/L - Although a low lactate level is good, it does not directly indicate improved oxygen delivery. B: Cardiac output of 2.5 L/min - Cardiac output should ideally increase to improve oxygen delivery, so 2.5 L/min is low for a 70-kg patient. D: Cardiac index of 1.5 L/min/m2 - Cardiac index is cardiac output adjusted for body surface area. 1.5 L/min/m2 is low and indicates inadequate cardiac function for a patient in septic shock.

Question 5 of 5

The nurse wishes to increase the use of evidence-based practice in the critical care unit where he works. What is a significant barrier to the implementation of evidence-based practice?

Correct Answer: C

Rationale: Rationale: The correct answer is C because lack of knowledge about literature searches hinders the ability to find and utilize evidence-based practice guidelines. Nurses need to be skilled in conducting literature searches to access relevant research. Choices A, B, and D are incorrect as they do not directly impede the implementation of evidence-based practice in the critical care unit.

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