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Which of the following patients is at the greatest risk of developing acute kidney injury? A patient who
- A. has been on aminoglycosides for the past 6 days
- B. has a history of controlled hypertension with a blood pressure of 138/88 mm Hg
- C. was discharged 2 weeks earlier after aminoglycoside therapy of 2 weeks
- D. has a history of fluid overload as a result of heart failure
Correct Answer: D
Rationale: The correct answer is D because a patient with a history of fluid overload due to heart failure is at the greatest risk of developing acute kidney injury. Heart failure can lead to decreased kidney perfusion causing acute kidney injury. In this scenario, the patient's fluid overload exacerbates the situation, further compromising kidney function.
Choice A is incorrect as aminoglycosides can cause kidney injury but the duration of 6 days is less concerning compared to chronic fluid overload from heart failure in choice D. Choice B is incorrect because controlled hypertension does not directly increase the risk of acute kidney injury. Choice C is incorrect as the patient being discharged 2 weeks earlier after aminoglycoside therapy does not necessarily indicate a higher risk compared to chronic fluid overload.
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The nurse notes that a patient’s endotracheal tube (ET), which was at the 22 cm mark, is now at the 25 cm mark and the patient is anxious and restless. Which action should the nurse take next?
- A. Offer reassurance to the patient.
- B. Bag the patient at an FIO2 of 100%.
- C. Listen to the patient’s breath sounds.
- D. Notify the patient’s health care provider.
Correct Answer: C
Rationale: The correct answer is C: Listen to the patient’s breath sounds. Moving from 22 cm to 25 cm may indicate ET tube migration. Checking breath sounds can confirm proper tube placement. A may not address the underlying issue. B could worsen the situation if the tube is misplaced. D is not urgent compared to assessing airway integrity.
The nurse is developing a teaching plan for an adolescent with a Milwaukee brace. Which instruction should the nurse include?
- A. Wear the brace over a T-shirt 23 hours per day.
- B. Dress with the brace over regular clothing.
- C. Shower with the brace directly against the skin.
- D. Remove the brace just before going to bed.
Correct Answer: A
Rationale: The correct answer is A because wearing the Milwaukee brace over a T-shirt ensures proper skin protection and ventilation. This helps prevent skin irritation and allows for comfortable wearing for long periods. Choice B may cause skin issues due to friction. Choice C is incorrect as moisture from showering can lead to skin problems. Choice D is incorrect as consistent wear is crucial for brace effectiveness.
The critical care unit environment is very stressful for patients, families, and staff. What nursing action is directed at reducing environmental stress?
- A. Constant evaluation of patient status
- B. Limiting visits to immediate family
- C. Bathing all patients during hours of sleep
- D. Maintaining quiet during hours of sleep
Correct Answer: D
Rationale: The correct answer is D: Maintaining quiet during hours of sleep. This action is essential in reducing environmental stress in the critical care unit as it promotes a restful environment for patients and allows for better sleep quality. Noise can disrupt sleep patterns and increase stress levels. Constant evaluation of patient status (A) is important but does not directly address environmental stress. Limiting visits to immediate family (B) can be beneficial in some cases but may not always reduce environmental stress. Bathing all patients during hours of sleep (C) may actually increase stress as it can be disruptive and uncomfortable for patients. Overall, maintaining a quiet environment during sleep hours is the most effective nursing action to reduce environmental stress in the critical care unit.
A 15-year-old boy is in the ICU and preparing for an appendectomy. He is clearly anxious and fidgets with his IV constantly. He complains that he doesnt want to be there and he is sick of everyone telling him what to do. What would be the best way for the nurse to address this patients anxiety?
- A. Use physical restraints to keep him from pulling out his IV.
- B. Offer him the remote to the television.
- C. Lower the head of his bed so that he can rest more easily.
- D. Explain to the patient in detail what the appendectomy will consist of.
Correct Answer: B
Rationale: The correct answer is B: Offer him the remote to the television. This is the best way to address the patient's anxiety because it provides a distraction and a sense of control, which can help alleviate anxiety. By offering the patient the remote to the television, the nurse is giving him a choice and a way to focus his attention away from his anxiety. This can help him feel more comfortable and empowered in the situation.
Choice A is incorrect because using physical restraints can increase the patient's anxiety and sense of helplessness. Choice C, lowering the head of his bed, may provide physical comfort but does not directly address his anxiety. Choice D, explaining the procedure in detail, may further increase his anxiety as it focuses on the surgery rather than addressing his current emotional state.
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
Correct Answer: D
Rationale: The correct answer is D because continuous venovenous hemodialysis combines ultrafiltration, convection, and dialysis techniques. Ultrafiltration removes excess fluid, convection helps in removing solutes, and dialysis involves the diffusion of solutes across a semipermeable membrane. This comprehensive approach ensures effective removal of both fluid and solutes in critically ill patients.
Incorrect Answer Analysis:
A: Removing fluids and solutes through convection alone is not the complete process in continuous venovenous hemodialysis.
B: While volume overload is addressed, continuous venovenous hemodialysis involves more than just removing plasma water.
C: Adding dialysate is not the primary method in continuous venovenous hemodialysis; it involves ultrafiltration, convection, and dialysis techniques.