A patient is prescribed a new medication. Which of the following would require the patient to have regular blood tests to monitor for side effects?

ACE inhibitors are commonly prescribed medications for managing hypertension and heart failure. These drugs can affect kidney function and electrolyte levels in the body, particularly potassium. Therefore, it is crucial to monitor renal function through regular blood tests, specifically measuring serum creatinine and potassium levels, to detect any potential adverse effects early.

While other medications, such as diuretics, also require monitoring for electrolyte imbalances, the frequency and necessity of blood testing is more critical with ACE inhibitors, especially in patients who may be at risk for renal impairment. In contrast, ARBs and statins typically necessitate less frequent blood monitoring under standard therapy conditions unless the patient presents with specific risk factors or complications.