Correct Answer: B

Rationale: Administering a vasopressin antagonist is the most critical intervention for a client with SIADH. SIADH is characterized by excessive release of antidiuretic hormone (ADH), leading to water retention and dilutional hyponatremia. A vasopressin antagonist helps manage the symptoms by blocking the effects of ADH, promoting water excretion, and restoring electrolyte balance. Restricting fluids (choice A) may exacerbate hyponatremia, monitoring intake and output (choice C) is important but not the most critical intervention, and encouraging a high-sodium diet (choice D) is contraindicated in SIADH due to the risk of worsening hyponatremia.

Correct Answer: C

Rationale: The slightly yellow color of the sclera is a normal racial variation found in the African-American population. Blue sclerae (Choice A) are associated with osteogenesis imperfecta, not a normal racial variation. Brown macules on the sclerae (Choice B) may indicate issues like melanoma or melanosis but are not a normal racial variation. Conjunctival pallor (Choice D) suggests anemia or decreased blood flow but is not a normal racial variation.

Correct Answer: D

Rationale: Chest pain radiating to the left arm is a classic symptom of a myocardial infarction (heart attack) in individuals with coronary artery disease. This finding indicates that the heart muscle may not be receiving adequate oxygen, which requires immediate intervention to prevent further damage or complications. The other assessment findings (heart rate of 90 beats per minute, respiratory rate of 20 breaths per minute, blood pressure of 130/80 mm Hg) are within normal limits and do not suggest an acute, life-threatening condition like myocardial infarction.

Correct Answer: B

Rationale: The correct answer is to suggest the client join a local senior center. Joining a local senior center provides the elderly client with opportunities for social interaction, engagement in activities, and access to support systems, which can significantly help alleviate feelings of isolation and loneliness. Regular visits from a home health aide (Choice A) may provide physical assistance but may not address the client's need for social connection. Referring the client to a support group for seniors (Choice C) is beneficial, but joining a senior center offers a wider range of activities and social opportunities. Recommending a new hobby (Choice D) may be helpful, but the priority should be addressing the client's immediate need for social interaction and support.

Correct Answer: C

Rationale: In this scenario, the client with AIDS is showing signs of being in a critical condition - semi-conscious, in pain, and with stable vital signs. The appropriate intervention for the nurse to implement is to discuss end-of-life decisions with the client's parents. Given the client's symptoms, the presence of a pain patch, and the closed and dried skin lesions, it is essential to address end-of-life care planning. Removing the Duragesic patch without proper authorization can lead to inadequate pain management and should not be done without consulting the healthcare provider. Giving a complete bed bath is not the priority in this situation as it does not address the immediate needs of the client. Calling for ambulance transportation to the hospital immediately may not be necessary if the client is stable; instead, the focus should be on providing appropriate support and having critical discussions about the client's care preferences.