This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
The client with chronic renal failure who is scheduled for hemodialysis this morning is due to receive a daily dose of enalapril (Vasotec). The nurse should plan to administer this medication: 
Select and explain. 
A. Just before dialysis, B. During dialysis, C. On return from dialysis, D. The day after dialysis
C: On return from dialysis
Answer: C: On return from dialysis 
Explanation: Antihypertensive medications such as enalapril are given to the client following hemodialysis. This prevents the client from becoming hypotensive during dialysis and also from having the medication removed from the bloodstream by dialysis. No rationale exists for waiting a full day to resume the medication. This would lead to ineffective control of the blood pressure.