Correct Answer: D

Rationale: A WBC count of 15,000/mm3 is elevated, which may indicate infection, a common concern postoperatively. An elevated WBC count suggests the body is fighting an infection, and prompt reporting to the provider is essential for further evaluation and treatment. Serosanguineous drainage on the surgical dressing is expected in the immediate postoperative period, respiratory rate of 16/min is within the normal range, and a heart rate of 90/min is also within an acceptable range postoperatively. Therefore, these findings do not raise immediate concerns that necessitate reporting to the provider.

Correct Answer: B

Rationale: The correct answer is B. Clients taking metoprolol should regularly check their pulse and should not take the medication if their pulse is too low. Option A is incorrect because metoprolol should not be taken with a glass of milk. Option C is incorrect because stopping medication abruptly can be harmful. Option D is incorrect because antacids should not be taken with metoprolol as they can decrease its absorption.

Correct Answer: C

Rationale: The correct answer is C: Heart rate of 60/min. A heart rate of 60/min is borderline bradycardia, which can be a sign of digoxin toxicity. Digoxin can cause bradycardia, so any further decrease in heart rate should be reported promptly to the healthcare provider. Choices A, B, and D are within the normal range and not specifically related to potential digoxin toxicity, so they do not require immediate reporting.

Correct Answer: D

Rationale: The correct answer is to keep the client's head of the bed elevated to 45 degrees. This position helps prevent aspiration in clients with a nasogastric tube for gastric decompression by reducing the risk of reflux and promoting proper drainage. Choice A is incorrect because checking for bowel sounds is not directly related to the care of a nasogastric tube. Choice B is incorrect as flushing the NG tube every 24 hours is not a standard nursing practice and may lead to complications. Choice C is incorrect because providing sips of water may interfere with the purpose of gastric decompression, which is to keep the stomach empty.

Correct Answer: B

Rationale: When setting up a sterile field for a dressing change, the nurse should open the outermost flap of the sterile kit away from the body. This action helps maintain the sterility of the field by minimizing the risk of contamination. Option A is incorrect because the cap from the solution should be placed sterile side down to prevent contamination. Option C is incorrect because the sterile dressing should be placed at least 1.25 cm away from the edge of the sterile field to maintain its sterility. Option D is incorrect because the sterile field should be set up above waist level to prevent potential contamination from reaching the field.