USMLE Step 1 - Question 40

An 82 year old male with a history of hypertension and congestive heart failure presents with palpitations. His heart rate is 140 beats per minute and his physical examination reveals an irregularly irregular rhythm. He is diagnosed with atrial fibrillation. Which of the following medications can reduce his heart rate while improving left ventricular systolic function?

A. Propranolol

B. Verapamil

C. Digoxin

D. Amiodarone