Correct Answer: B

Rationale: The correct answer is to check the client's capillary blood glucose level every 4 hours. Clients receiving TPN are at risk for hyperglycemia, so regular monitoring of blood glucose levels is essential to detect and manage hyperglycemia promptly. Administering TPN through a peripheral IV catheter (Choice A) is incorrect as TPN should be given through a central venous catheter to prevent complications. Heating the TPN solution to room temperature (Choice C) is unnecessary and not a standard practice. Weighing the client every 3 days (Choice D) is important for monitoring fluid status but is not the priority action when caring for a client receiving TPN.

Correct Answer: A

Rationale: A WBC count of 2,900/mm3 indicates leukopenia, which is a serious side effect of clozapine and contraindicates its use. Leukopenia is a significant concern with clozapine therapy due to the risk of agranulocytosis, a potentially life-threatening condition. Monitoring the WBC count is crucial to detect this adverse effect early. The other options (B, C, and D) are within normal ranges and not contraindications for administering clozapine.

Correct Answer: B

Rationale: The first nursing action when caring for a client with a wound infection is to perform a wound culture before applying antibiotics. This step is crucial to identify the specific infecting organism and determine the most effective antibiotic therapy. Choices A, C, and D are incorrect because changing the dressing, cleansing the wound, or applying a wet-to-dry dressing should only be done after obtaining the culture results and starting appropriate antibiotic treatment.

Correct Answer: A

Rationale: In acute renal failure, it is crucial to monitor urine output to assess kidney function and fluid balance. Administering diuretics helps manage fluid levels by promoting urine production. Choice B is incorrect because administering IV fluids can worsen fluid overload in renal failure patients, and restricting potassium intake is not typically the initial approach. Choice C is not the primary intervention but is important for long-term management. Choice D is incorrect as administering potassium can be dangerous in renal failure, and restricting fluids can lead to dehydration.

Correct Answer: A

Rationale: The correct way to assess a patient with fluid overload is by monitoring weight and assessing for edema. Weight monitoring helps in detecting fluid retention, and edema is a visible sign of excess fluid accumulation. Although monitoring blood pressure and auscultating lung sounds are important assessments in heart failure, they are not specific to fluid overload. Assessing for jugular venous distention is more indicative of right-sided heart failure rather than fluid overload. Monitoring oxygen saturation and checking for fluid retention are not primary assessments for fluid overload.