Correct Answer: A

Rationale: The correct answer is A: Serum glucose level. In Cushing's disease, elevated cortisol levels lead to increased gluconeogenesis, insulin resistance, and breakdown of proteins and fats, resulting in elevated blood glucose levels. This is known as hyperglycemia. The other options, including serum calcium level (choice B), lymphocyte count (choice C), and serum potassium level (choice D), are not typically affected by Cushing's disease. Therefore, they are incorrect choices.

Correct Answer: A

Rationale: The correct answer is A. Clozapine can cause agranulocytosis, a serious condition that decreases the number of white blood cells. Reporting a sore throat is crucial as it could be a sign of infection. Choice B is incorrect because there is no specific interaction between clozapine and grapefruit juice. Choice C is incorrect because clozapine is usually taken without regard to meals. Choice D is incorrect as clozapine is generally taken without food to enhance absorption.

Correct Answer: C

Rationale: The correct answer is C: Cyanosis of the lips and nail beds. Cyanosis is a late sign of hypoxia and indicates severe oxygen deprivation, requiring immediate intervention in clients with pneumonia. Reporting this finding promptly is crucial to prevent further complications. Choices A, B, and D are incorrect because increased appetite, productive cough with green sputum, and mild shortness of breath are common findings in clients with pneumonia and may not require immediate intervention unless they worsen or are accompanied by other concerning symptoms.

Correct Answer: A

Rationale: The correct answer is A: Serum glucose level. In Cushing's disease, elevated cortisol levels lead to increased gluconeogenesis, insulin resistance, and breakdown of proteins and fats, resulting in elevated blood glucose levels. This is known as hyperglycemia. The other options, including serum calcium level (choice B), lymphocyte count (choice C), and serum potassium level (choice D), are not typically affected by Cushing's disease. Therefore, they are incorrect choices.

Correct Answer: B

Rationale: The correct answer is B because swelling in the hands is a potential sign of worsening preeclampsia, and the client should report this to their provider. Choice A is incorrect since aspirin is not recommended in preeclampsia. Choice C is incorrect as calcium intake is not directly related to preventing seizures in preeclampsia. Choice D is incorrect because protein restriction is not the standard management for preventing further kidney damage in preeclampsia.