Diabetes Mellitus in Medicine / Internal Medicine — 78yo Man | Cardiology | SMLE Q#17124
SMLE Question #17124
Medicine / Internal Medicine
Cardiology
Objective: OBJ-163
Last updated: February 2026
A 78-year-old man with diabetes mellitus and long-standing hypertension is admitted with sudden-onset severe diffuse abdominal pain and distension. CT angiography is consistent with acute mesenteric ischemia, and exploratory laparotomy requires small-bowel resection. A cardioembolic source is suspected. A 12-lead ECG shows normal sinus rhythm. Transthoracic echocardiography shows normal ventricular function with no valvular disease or intracardiac thrombus. What is the most appropriate next step in cardiac workup to evaluate for intermittent atrial fibrillation?
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