Correct Answer: A

Rationale: The correct answer is to validate that the children who were sent home had chickenpox. This is crucial in confirming the presence of varicella, which is necessary for appropriate management and control of the outbreak. Option B is not the first intervention because the focus initially is on verifying the cases within the daycare center. Option C is incorrect as it suggests a prolonged exclusion period without confirming the diagnosis. Option D is inappropriate and potentially harmful, as sending a child back without proper assessment can lead to further spread of the infection.

Correct Answer: A

Rationale: The correct answer is A: Hepatotoxicity. Isoniazid (INH) can lead to hepatotoxicity, necessitating the monitoring of liver function tests. This adverse effect is characterized by liver damage and dysfunction. Choices B, C, and D are incorrect because isoniazid is not typically associated with hyperglycemia, hypotension, or hypokalemia. Therefore, the nurse should focus on assessing for signs and symptoms of hepatotoxicity in a client receiving isoniazid.

Correct Answer: C

Rationale: In community health nursing practice, nurses are trained as generalists in nursing. They receive education that equips them to address a wide range of health concerns in the community. Choice A, nurse-midwife, is incorrect as it refers to a specific role focusing on childbirth and maternal health. Choice B, practice nursing, is vague and does not specifically describe the training of community health nurses. Choice D, midwife, is also incorrect as it refers to a specialized role in maternal and newborn care, different from the generalist training of community health nurses.

Correct Answer: D

Rationale: The correct answer is to listen to the client. Listening allows the nurse to establish therapeutic communication, understand the client's fears and concerns, provide emotional support, and help alleviate anxiety. Calling a chaplain (Choice A) may be appropriate if the client requests spiritual support but should not be the initial response. Denying the feelings (Choice B) is dismissive and can hinder trust and communication. Citing recovery statistics (Choice C) is irrelevant and does not address the client's immediate emotional needs.

Correct Answer: A

Rationale: The correct answer is A. Audible wheezing and grunting in an infant indicate respiratory distress, which is a critical condition requiring immediate assessment and intervention by the healthcare provider. Choices B, C, and D do not present with immediate life-threatening conditions that require urgent evaluation. Soot on the face and shirt, second-degree burns on the hand, and singed hair, while concerning, do not pose an immediate threat to life compared to respiratory distress in an infant.