Correct Answer: C

Rationale: Furosemide is a loop diuretic that acts on the kidneys to increase urine production. This increased urine output can lead to the excessive excretion of potassium, resulting in hypokalemia. Monitoring potassium levels and considering supplementation may be necessary when a patient is on furosemide to prevent or manage hypokalemia.

Correct Answer: D

Rationale: To prevent Otitis Externa, the nurse should instruct the client to tip the head to the side to allow water to drain out after showering or swimming. This helps to prevent moisture buildup in the ear canal, reducing the risk of developing Otitis Externa, commonly known as swimmer's ear.

Correct Answer: B

Rationale: The correct answer is B because Fluticasone may show some benefits within a few hours, but its full therapeutic effect may take up to 3 weeks to be achieved in treating Perennial Rhinitis. Option A is incorrect as the frequency of Fluticasone use is usually once daily. Option C is incorrect as Fluticasone is not used for motion sickness. Option D is incorrect as Fluticasone is a preventive medication and not used for immediate relief when nasal passages are blocked.

Correct Answer: C

Rationale: The correct answer is to instruct the client to notify the provider if they develop a persistent cough. A persistent cough is a common adverse effect of Captopril and other ACE inhibitors. It is essential for the client to inform their healthcare provider promptly if this side effect occurs, as it may indicate a potentially serious issue that needs medical attention.

Correct Answer: C

Rationale: Protamine is the antidote for heparin, as it reverses its anticoagulant effects. In cases of heparin overdose or if there is excessive bleeding, administering protamine can quickly neutralize the effects of heparin, helping to prevent further bleeding complications.