Medical Exams MCQ (SBA): Atrial Fibrillation

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A 68-year-old man with paroxysmal atrial fibrillation (AF) and type 2 diabetes (no valve disease) has a CHA2DS2-VASc score of 3 (age 65-74=1, HTN=1, DM=1). Renal function is normal. What is the best next step to reduce his stroke risk?

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