system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 74-year-old man presents to the clinic for a routine health checkup. He has been hypertensive for the past 20 years, and he has had congestive heart failure for the past 2 years. He is currently on captopril and claims to be compliant with his medication. His most recent echocardiogram report shows that his ejection fraction has been decreasing, so the physician decides to add spironolactone to his drug regimen. Which of the following complications should be most closely monitored for in this patient?
assistant
Hyperkalemia