Afghanistan Specialization Entry Exam

Practice session

A 72-year-old male on long-term Warfarin therapy for non-valvular atrial fibrillation presents to the emergency department with acute intracranial hemorrhage following a fall. His INR is markedly elevated at 7.8. What is the molecular mechanism of action of Warfarin, and what is the fastest, most effective guideline-recommended reversal strategy for life-threatening Warfarin-associated bleeding?

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