A 70-year-old man with a history of coronary artery disease and an ischemic cardiomyopathy with a left ventricular ejection fraction of 38% presents to the emergency room with complaints of lightheadedness. His medications include a β-blocker, an angiotensin-converting enzyme inhibitor, and Imdur. His pulse is noted to be slow, and a 12-lead ECG is obtained.
What is the diagnosis?
The diagnosis will follow in the May 17 issue.
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