Correct Answer: B

Rationale: The correct instruction for a client taking digoxin is to notify their provider if they experience visual disturbances. Visual disturbances can be a sign of digoxin toxicity, and prompt notification to the healthcare provider is essential for timely intervention. Choice A is incorrect because digoxin should be taken on an empty stomach for better absorption. Choice C is incorrect because antacids can interfere with the absorption of digoxin. Choice D is incorrect because a heart rate less than 60/min is not a sole reason to avoid taking digoxin; rather, it is important to monitor the heart rate and consult with the healthcare provider if there are concerns.

Correct Answer: A

Rationale: The correct answer is to monitor the patient's respiratory rate. This assessment is essential as it ensures that the patient is breathing adequately post-surgery. Maintaining a patent airway and adequate oxygenation are the top priorities in the immediate postoperative period. Monitoring blood pressure, checking the surgical site, or monitoring heart rate are important assessments but are not the priority immediately upon the patient's return from surgery.

Correct Answer: B

Rationale: The most appropriate nursing intervention for a patient experiencing hypoglycemia is to administer oral glucose. Oral glucose is usually sufficient for treating mild hypoglycemia and can be administered quickly and easily. Administering IV glucose (Choice A) is reserved for severe cases where the patient is unable to swallow or unconscious. Checking blood sugar in 15 minutes (Choice C) is important but providing glucose should come first. Providing a high-calorie snack (Choice D) may not be as rapidly effective as administering oral glucose in quickly raising blood sugar levels in a patient experiencing hypoglycemia.

Correct Answer: A

Rationale: The correct answer is to monitor the INR (International Normalized Ratio) for a patient receiving warfarin therapy. INR monitoring is crucial to assess the effectiveness of warfarin in preventing blood clots while minimizing the risk of bleeding. Monitoring sodium levels (choice B), potassium levels (choice C), or platelet count (choice D) is not specifically essential for patients on warfarin therapy and does not provide direct information on the drug's anticoagulant effects.

Correct Answer: C

Rationale: The correct intervention for a client with deep vein thrombosis (DVT) is to elevate the affected extremity above the level of the heart. This position promotes venous return, reduces swelling, and helps prevent complications such as pulmonary embolism. Applying cold compresses (choice A) can vasoconstrict blood vessels, potentially worsening the condition. Massaging the affected extremity (choice B) can dislodge the clot and lead to serious complications. Keeping the affected extremity dependent when sitting (choice D) can hinder venous return and exacerbate the DVT.