A 58-year-old man on warfarin for atrial fibrillation presents with spontaneous epistaxis and INR 7.5. He is haemodynamically stable with no other bleeding. What is the most appropriate management?AContinue warfarin at the same doseBHold warfarin and give vitamin K orally or intravenouslyCAdminister prothrombin complex concentrate and vitamin K immediatelyDDo nothing; INR will normalise spontaneouslyESwitch to heparin infusion immediately without reversing warfarinCheck my answer