Pharmacology · single question

A patient on warfarin bleeds when flossing. What is the cause?

  1. Poor flossing technique
  2. Warfarin's anticoagulant effect (inhibiting clotting factors)
  3. Gingivitis from plaque
  4. Vitamin C deficiency
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Correct answer: B. Warfarin's anticoagulant effect (inhibiting clotting factors)

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