Correct Answer: A

Rationale: The correct answer is hyperkalemia. Spironolactone is a potassium-sparing diuretic that can lead to an increase in potassium levels. Hyperkalemia can be dangerous, causing muscle weakness and cardiac dysrhythmias, making it essential for the nurse to monitor potassium levels closely when a client is on Spironolactone.

Correct Answer: C

Rationale: The correct answer is C: Delirium. When IV nitroprusside is administered at high dosages, it can lead to thiocyanate toxicity, resulting in mental status changes such as delirium. Monitoring thiocyanate levels during therapy is crucial to ensure they remain below 10 mg/dL to prevent this adverse reaction.

Correct Answer: B

Rationale: The correct answer is to instruct the client to remain upright for 30 minutes after taking Alendronate. Alendronate can cause esophageal irritation and even ulceration if it remains in contact with the esophagus. By staying upright, the medication is more likely to pass through the esophagus and into the stomach, reducing the risk of irritation and complications.

Correct Answer: B

Rationale: Vitamin K can interfere with the effectiveness of Warfarin. Clients should avoid foods high in vitamin K, such as leafy green vegetables.

Correct Answer: D

Rationale: When taking colesevelam, it should be administered with food and at least 8 oz of water to ensure proper absorption and reduce the risk of gastrointestinal side effects. Therefore, the nurse should instruct the client to take colesevelam with food and at least one glass of water.