Which electrolyte abnormality is commonly associated with the use of ACE inhibitors?

The correct choice is hyperkalemia. ACE inhibitors, which are commonly used to treat conditions like hypertension and heart failure, can lead to elevated potassium levels in the blood. This occurs because ACE inhibitors reduce aldosterone secretion, a hormone that normally promotes the excretion of potassium by the kidneys. With reduced levels of aldosterone, the kidneys are less effective at removing potassium from the bloodstream, leading to a buildup of potassium, or hyperkalemia.

Monitoring potassium levels is crucial for patients on ACE inhibitors, as elevated potassium can result in serious complications such as cardiac arrhythmias. It's important to educate patients on the potential signs of hyperkalemia, such as muscle weakness, fatigue, and palpitations, and to ensure that their potassium levels are regularly evaluated during treatment.