MCC VaultPractice questions › Medicine › Arrhythmias and atrial fibrillation
Arrhythmias and atrial fibrillation
A practice question in the style of the MCCQE MCQ exam. Choose your answer to see the explanation.
A 72-year-old man with AF has a mechanical mitral valve. Which anticoagulant is appropriate?
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The answer is D: Warfarin.
DOACs are contraindicated with mechanical heart valves because of excess valve thrombosis and bleeding seen with dabigatran. Warfarin is required, with a higher INR target for a mechanical mitral valve. The same applies to moderate to severe mitral stenosis.
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