Correct Answer: D

Rationale: The correct answer is D: a low WBC count. Clozapine can suppress bone marrow function, leading to a decreased white blood cell count. This condition, known as agranulocytosis, increases the risk of severe infections. Monitoring WBC counts is essential during clozapine therapy. Choices A, B, and C are within normal ranges and are not contraindications for administering clozapine.

Correct Answer: C

Rationale: The correct answer is C: Sodium 140 mEq/L. An elevated sodium level can affect the effectiveness of digoxin therapy and may lead to toxicity. Therefore, it is crucial to report this value to the provider. Potassium, calcium, and magnesium levels are important as well, but elevated sodium can have a more direct impact on digoxin therapy in this scenario.

Correct Answer: D

Rationale: The correct answer is D: a low WBC count. Clozapine can suppress bone marrow function, leading to a decreased white blood cell count. This condition, known as agranulocytosis, increases the risk of severe infections. Monitoring WBC counts is essential during clozapine therapy. Choices A, B, and C are within normal ranges and are not contraindications for administering clozapine.

Correct Answer: A

Rationale: The correct action for the nurse to take is to store the glasses in a labeled case. This helps prevent damage and loss of the glasses, ensuring they are kept safe when not in use. Cleaning the glasses with hot water (choice B) can damage the lenses or frames, while cleaning with a paper towel (choice C) might lead to scratches. Storing the glasses on the bedside table (choice D) increases the risk of misplacement or damage.

Correct Answer: C

Rationale: The correct answer is C: Bananas. Bananas are rich in potassium and should be included in the diet of clients taking furosemide, a potassium-wasting diuretic. Grapes, apples, and rice are not as high in potassium as bananas and would not be as effective in replenishing potassium levels in clients taking furosemide.