MCQ (SBA): nonvalvular atrial fibrillation

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MediumDose reduction to 2.5 mg BID is indicated only if the patient has ≥2 of: age ≥80 yearsnonvalvular atrial fibrillation

A 72-year-old with nonvalvular atrial fibrillation (CHA₂DS₂‑VASc = 3) weighs 88 lb (40 kg)

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