Correct Answer: D

Rationale: A serum calcium level of 7.5 mg/dL is indicative of hypocalcemia, a common complication in clients with chronic kidney disease due to impaired calcium absorption and metabolism. Hypercalcemia (Choice A) is the opposite of the condition presented in the question and is characterized by elevated serum calcium levels. Hyperkalemia (Choice B) is an increased potassium level, not related to the client's serum calcium level. Hyponatremia (Choice C) is a decreased sodium level and is also not related to the client's serum calcium level.

Correct Answer: C

Rationale: A total calcium level of 5.0 mg/dL is critically low and indicates possible hypocalcemia, a common complication after thyroid surgery. This condition can lead to tetany and requires immediate intervention. Blood glucose within normal range, sodium, and potassium levels are not indicative of an immediate postoperative complication like hypocalcemia in this case.

Correct Answer: C

Rationale: All of the above findings should be reported to the healthcare provider for prompt evaluation and treatment. Swollen lymph nodes in the groin indicate regional lymphatic involvement, a core body temperature of 100.5°F suggests a mild fever response, and an elevated white blood cell count indicates an ongoing infection process. These findings collectively point towards the spread of infection and require immediate attention to prevent further complications.

Correct Answer: C

Rationale: The correct answer is C: Fresh or frozen vegetables without sauce. These foods are low in sodium, which is crucial for managing hypertension. Pickled olives (choice A) and canned soup (choice B) are high in sodium, which can exacerbate hypertension. While fruits without sauce (choice D) are generally healthy, emphasizing vegetables is more beneficial for hypertension due to their lower sodium content.

Correct Answer: C

Rationale: The most crucial nursing assessment in determining whether therapy should be initiated for an asymptomatic HIV-infected client with a CD4 cell count of 500 is the client's willingness to comply with complex drug schedules. Adherence to antiretroviral therapy is essential for its effectiveness. Assessing the client's willingness and ability to comply with the complex medication regimen is crucial to ensure successful treatment and prevent drug resistance. Choices A, B, and D, although important in the overall care of the client, are not as crucial as assessing the client's willingness to adhere to the prescribed drug regimen.