Correct Answer: D

Rationale: Metformin can lead to lactic acidosis, especially in individuals with impaired renal function. Monitoring the client's serum creatinine levels is crucial to assess kidney function because Metformin is eliminated by the kidneys, and impaired renal function can increase the risk of adverse effects.

Correct Answer: A

Rationale: Enalapril, an ACE inhibitor, commonly causes a persistent dry cough as an adverse effect. The nurse should closely monitor the client for this and instruct them to report it to the healthcare provider if it occurs.

Correct Answer: A

Rationale: The correct instruction for a client prescribed furosemide is to take the medication in the morning. Furosemide, a diuretic, is best taken in the morning to prevent nocturia, which is excessive urination at night. Taking it earlier in the day can help reduce disruptions to sleep patterns. Therefore, advising the client to take furosemide in the morning is crucial for optimal therapeutic effects.

Correct Answer: B

Rationale: Ferrous sulfate is best absorbed on an empty stomach. Instruct the client to take it 1 hour before or 2 hours after meals to maximize absorption and avoid interactions with food or beverages that may decrease absorption.

Correct Answer: A

Rationale: A persistent dry cough is a common adverse effect of Enalapril, which is an ACE inhibitor. Enalapril can cause the accumulation of bradykinin, leading to cough. If the client experiences a persistent dry cough, it is essential to notify the healthcare provider for further evaluation and possible medication adjustment.