Which of the following is NOT an indication for ACE inhibitors?

ACE inhibitors, or angiotensin-converting enzyme inhibitors, are primarily used for conditions related to the cardiovascular system and fluid balance. They help lower blood pressure, improve heart function, and protect the kidneys in certain situations.

Hypertension is a key indication for ACE inhibitors, as these medications effectively reduce blood pressure by relaxing blood vessels. In chronic heart failure (CHF), ACE inhibitors are beneficial because they reduce the workload on the heart and help manage fluid retention.

Left ventricular dysfunction after a myocardial infarction (MI) is also an indication for ACE inhibitors. They are prescribed to prevent further complications, improve outcomes, and promote heart remodeling after an MI.

Acute renal failure is not typically treated with ACE inhibitors. While these medications can provide renal protective effects in chronic kidney disease, they may worsen kidney function or contribute to renal impairment when used in the context of acute renal failure. This is because ACE inhibitors decrease glomerular filtration rate (GFR) in situations where renal perfusion is already compromised, potentially leading to further damage. Hence, it is important to avoid their use in this specific acute scenario.