Correct Answer: C

Rationale: The correct answer is C: IgM. During an acute infection, the body's initial response is rapid and non-specific, leading to the production of IgM antibodies first. IgM is the first immunoglobulin class produced in response to a new antigen, providing immediate protection. IgG is produced later in the immune response and is responsible for long-term immunity. IgE is involved in allergic reactions and parasitic infections, not typically the first response to infection. IgD is primarily found on the surface of B cells and its function is not well understood in the context of acute infections.

Correct Answer: C

Rationale: The correct answer is C: Fluid replacement. In end-stage AIDS with Cryptosporidium infection, the client experiences severe diarrhea leading to dehydration and electrolyte imbalances. Fluid replacement is crucial to prevent hypovolemia and maintain electrolyte balance. Adequate hydration supports renal function, prevents further complications, and aids in the elimination of the infectious agent. Pain management (A) may be needed for discomfort but is not the priority. Antiretroviral therapy (B) is essential for managing HIV but does not directly address the immediate issue of dehydration. High-calorie intake (D) is important for overall nutrition but does not address the urgent need for fluid replacement in this situation.

Correct Answer: D

Rationale: The correct answer is D: Preventing bone injury. In multiple myeloma, abnormal plasma cells can weaken bones, leading to fractures. Preventing bone injury involves educating the client on fall prevention, avoiding heavy lifting, and ensuring a safe environment. Monitoring respiratory status (A) is not the priority in multiple myeloma. Restricting fluid intake (B) is not directly related to managing multiple myeloma. Balancing rest and activity (C) is important for overall well-being but does not directly address the specific needs of a client with multiple myeloma.

Correct Answer: C

Rationale: The correct answer is C because it encourages the patient to provide more detailed information about the cause of their pain, which can help in understanding the underlying health issues. Choice A is judgmental and may make the patient defensive. Choice B is closed-ended and does not prompt for specific details. Choice D is directive and may not be well-received by the patient. Asking the patient to elaborate on what caused their pain allows for a more open-ended response, leading to a more thorough health history assessment.

Correct Answer: B

Rationale: The correct answer is B because the nurse should primarily communicate with the patient, not just the daughter. This ensures patient-centered care and respects the patient's autonomy. Speaking only to the daughter may undermine the patient's dignity and may lead to incomplete information gathering. Choices A, C, and D are incorrect as they are appropriate nursing communication techniques that facilitate rapport-building and active listening with the patient. Making eye contact, leaning forward, and nodding are all positive non-verbal cues that show engagement and attentiveness to the patient, promoting effective communication and building trust.