Correct Answer: B

Rationale: The correct answer is to 'Report a rash.' Metronidazole can cause severe adverse reactions like Stevens-Johnson syndrome, a life-threatening rash. It is crucial to educate the patient to report any rash immediately to prevent serious complications. Choices A, C, and D are incorrect because while they may be relevant to consider during metronidazole therapy, they are not the priority teaching point. Headaches can occur but are not as serious as a rash; avoiding sunlight is more related to doxycycline, not metronidazole; and taking with meals is a general instruction for some medications but not the priority teaching point for metronidazole.

Correct Answer: B

Rationale: The correct answer is B. The client with renal failure and high potassium levels requires immediate attention because hyperkalemia can lead to life-threatening cardiac complications. Administering sodium polystyrene sulfonate helps lower the potassium levels. Choice A, the client with pneumonia and a high WBC count, although important, does not present an immediate life-threatening condition. Choice C, the post-CABG client prescribed atorvastatin, and Choice D, the client with anemia and a hemoglobin level of 11g/dL prescribed epoetin alfa, do not require immediate intervention compared to managing hyperkalemia in a client with renal failure.

Correct Answer: A

Rationale: The correct answer is A: Pregnancy status. Raloxifene is a pregnancy category X drug, which means it can cause serious birth defects. Therefore, it is crucial for the nurse to assess the client's pregnancy status before initiating therapy. Choice B, bone density, while important in osteoporosis management, is not a specific concern related to initiating raloxifene therapy. Choice C, calcium levels, and choice D, blood pressure, are not directly related to the initiation of raloxifene therapy in a female client with osteoporosis.

Correct Answer: D

Rationale: The recommended approach for handling aggressive behavior in a mental health setting is to maintain eye contact, offer clear choices, and set boundaries. This approach can help de-escalate the situation by establishing communication and structure. Choice A is incorrect as encouraging physical activity may not be suitable during an aggressive episode. Choice B is incorrect because avoiding eye contact can hinder communication and resolution. Choice C is also incorrect as pharmacological interventions should not be the immediate go-to method for managing aggression unless absolutely necessary.

Correct Answer: B

Rationale: The correct answer is to administer nitroglycerin. Nitroglycerin is the priority intervention for a patient presenting with chest pain as it helps dilate blood vessels, reduce chest pain, and improve oxygen supply to the heart. Obtaining a detailed medical history, conducting an ECG, or administering morphine sulfate are important steps in the assessment and treatment process but are secondary to the immediate need to address chest pain and potential cardiac ischemia.