A 78-year-old man with non-valvular atrial fibrillation and CHA₂DS₂-VASc score of 5 is on warfarin. He presents with a large melaena, hypotension and an INR of 4.5. What is the most appropriate strategy for rapid reversal of anticoagulation?AWithhold warfarin onlyBAdminister vitamin K orally and observeCAdminister intravenous vitamin K and a 4-factor prothrombin complex concentrate (PCC)DAdminister fresh frozen plasma aloneEContinue warfarin and transfuse red cells onlyCheck my answer