which of the following lab values indicates a patient on warfarin is at a therapeutic level
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Nursing Elites

ATI RN

ATI RN Comprehensive Exit Exam

1. Which of the following lab values indicates a patient on warfarin is at a therapeutic level?

Correct answer: C

Rationale: An INR of 2.5 indicates a therapeutic level for a patient on warfarin. The INR (International Normalized Ratio) is the most accurate way to monitor and adjust warfarin doses. An INR of 1.1 (Choice A) is below the therapeutic range, indicating a need for an increased dose. PT (Prothrombin Time) of 12 seconds (Choice B) is not specific for warfarin therapy monitoring. Platelet count (Choice D) is not directly related to monitoring warfarin therapy.

2. When discussing clients designating a health care proxy in situations requiring a durable power of attorney for health care (DPAHC), what information should the charge nurse include?

Correct answer: C

Rationale: The correct answer is C. The charge nurse should include information that the proxy can make treatment decisions if the client is under anesthesia. This is a key function of a durable power of attorney for health care. Choices A, B, and D are incorrect because a health care proxy's role is specifically related to making health care decisions, not financial decisions, legal issues, or decisions made under anesthesia.

3. A client receiving morphine via patient-controlled analgesia (PCA) should have naloxone administered if their respiratory rate is below 10/min. What action should the nurse take?

Correct answer: C

Rationale: The correct action for the nurse to take is to administer naloxone if the client's respiratory rate falls below 10/min. Naloxone is used to reverse opioid-induced respiratory depression, which is a life-threatening situation. Monitoring the client's blood pressure every 4 hours (Choice A) is not the priority in this scenario as respiratory depression requires immediate attention. Asking the client to rate their pain every 2 hours (Choice B) is important for pain management but addressing respiratory depression takes precedence. Evaluating the client's use of the PCA every 4 hours (Choice D) is a routine nursing intervention but does not directly address the urgent need to reverse respiratory depression in this case.

4. When teaching a client about nutritional intake, what should be included?

Correct answer: A

Rationale: When educating a client about nutritional intake, it is important to mention that carbohydrates should constitute at least 45% of their daily caloric intake for a balanced diet. This macronutrient provides energy and is essential for proper bodily functions. Choice B is incorrect because protein should typically account for around 10-35% of total caloric intake, not 55%. Choice C is too low for the recommended carbohydrate intake, as it should be higher at 45%. Choice D is incorrect as protein intake should generally be around 10-35% of total caloric intake, not 60%.

5. How should a healthcare professional respond to a patient who is experiencing confusion after surgery?

Correct answer: A

Rationale: Administering oxygen is the most appropriate initial response to a patient experiencing confusion after surgery. Confusion can be a sign of hypoxia, which is inadequate oxygen supply to the brain. Administering oxygen helps ensure that the patient is getting enough oxygen, addressing a potential cause of the confusion. Repositioning the patient, encouraging deep breathing exercises, or performing a neurological exam may be necessary depending on the situation, but addressing potential hypoxia should be the priority in a confused post-operative patient.

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