Correct Answer: A

Rationale: A common adverse effect of Enalapril, an ACE inhibitor, is a persistent dry cough. This occurs due to the accumulation of bradykinin, and it is essential for the client to report this to their healthcare provider to consider alternative medications.

Correct Answer: A

Rationale: The correct answer is A. Alcohol should be avoided while taking Metronidazole because it can lead to a disulfiram-like reaction, causing severe nausea and vomiting. It is important for the client to understand this to prevent adverse reactions and ensure the effectiveness of the medication in treating the infection.

Correct Answer: A

Rationale: Furosemide, a loop diuretic commonly used in heart failure, can cause hypokalemia (low potassium levels) as a side effect. Monitoring serum potassium levels is crucial to detect and prevent complications associated with low potassium levels, such as cardiac arrhythmias. Therefore, the nurse should prioritize assessing the client's serum potassium levels regularly while on Furosemide.

Correct Answer: C

Rationale: Iron supplements commonly cause constipation as a side effect. Increasing fiber intake can help alleviate this issue by promoting regular bowel movements and preventing constipation.

Correct Answer: A

Rationale: Low potassium levels can lead to Digoxin toxicity because Digoxin competes with potassium for binding sites on the sodium-potassium pump, and when potassium levels are low, there is an increased risk of Digoxin binding and toxicity.