Correct Answer: B

Rationale: Amlodipine, a calcium channel blocker, commonly causes peripheral edema as an adverse effect. This is due to its vasodilation effects on blood vessels, leading to fluid accumulation in the extremities. Monitoring for peripheral edema is crucial to assess the client's response to amlodipine and ensure timely intervention if needed.

Correct Answer: D

Rationale: Nystatin is the appropriate medication for treating oral thrush as it is an antifungal drug specifically used for fungal infections. It targets the fungus responsible for thrush, Candida, effectively. Therefore, the nurse should contact the healthcare provider to request a refill of Nystatin for the client.

Correct Answer: B

Rationale: Magnesium and calcium can accumulate in patients with renal failure, leading to toxicity.

Correct Answer: B

Rationale: The correct answer is B: Dry cough. Losartan, an angiotensin II receptor blocker, can lead to a dry cough as a potential side effect. This occurs due to the drug's effect on the bradykinin pathway in the lungs. Monitoring for a dry cough is essential as it may indicate the need for further evaluation or medication adjustment to manage this adverse reaction.

Correct Answer: B

Rationale: Amlodipine, a calcium channel blocker, commonly causes peripheral edema as an adverse effect. This is due to its vasodilation effects on blood vessels, leading to fluid accumulation in the extremities. Monitoring for peripheral edema is crucial to assess the client's response to amlodipine and ensure timely intervention if needed.