Correct Answer: B

Rationale: The correct answer is B. Rifampin can cause red-orange discoloration of bodily fluids, including urine, saliva, and tears. This is a harmless side effect, but clients should be informed beforehand to prevent alarm. Choice A is incorrect as orange-colored urine is not a sign of kidney dysfunction related to rifampin. Choice C is incorrect because rifampin is more commonly associated with liver toxicity rather than kidney dysfunction. Choice D is incorrect as vision changes are not a typical side effect of rifampin.

Correct Answer: B

Rationale: The correct answer is B: Monitor the client's intake and output. When a client with acute pancreatitis is on NPO status, the nurse's priority intervention is to monitor the client's intake and output. This is crucial to assess for signs of dehydration, electrolyte imbalances, and to ensure the client is responding appropriately to treatment. Administering antiemetic medication (choice A) may be necessary for managing nausea and vomiting but is not the priority over monitoring intake and output. Providing mouth care (choice C) and elevating the client's head of the bed (choice D) are important aspects of care but do not take precedence over monitoring intake and output to prevent complications in clients with NPO status due to acute pancreatitis.

Correct Answer: D

Rationale: The correct answer is D: Baked potato. Baked potatoes are rich in potassium, which is essential in preventing digitalis toxicity by helping to maintain normal electrolyte levels. Apricots, bananas, and oranges are also sources of potassium, but a baked potato has a higher potassium content compared to the other options, making it a more effective choice for preventing digitalis toxicity.

Correct Answer: B

Rationale: A fever of 103 degrees Fahrenheit indicates that the infection is not under control despite antibiotic therapy. Fever is a common sign of ongoing infection or inadequate response to treatment. Nausea and vomiting, diffuse macular rash, and muscle tenderness are not typically indicative of the effectiveness of antibiotic therapy in treating infective endocarditis.

Correct Answer: A

Rationale: The correct answer is A: 'Antiembolism stockings on, leg exercises performed hourly.' This documentation indicates the correct performance of activities to prevent postoperative venous stasis, as both components are crucial for prevention. Choice B is incorrect because removing stockings hourly is not recommended. Choice C is incorrect as leg exercises should be performed despite wearing antiembolism stockings. Choice D is incorrect as demonstrating the ability to move extremities well does not specifically address the prevention of venous stasis.