A 58-year-old man on warfarin for atrial fibrillation presents for elective colonoscopy with polypectomy anticipated. He has no prior stroke, heart fa...

Question

A 58-year-old man on warfarin for atrial fibrillation presents for elective colonoscopy with polypectomy anticipated. He has no prior stroke, heart failure, or valvular disease and CHA₂DS₂-VASc score is 1 (hypertension). According to Canadian perioperative anticoagulation guidance, how should his warfarin be managed?

Accepted Answer

Stop warfarin 5 days before the procedure without bridging

Answer

Continue warfarin without interruption

Answer

Stop warfarin and bridge with therapeutic low-molecular-weight heparin

Answer

Switch to dual antiplatelet therapy instead of warfarin

Answer

Stop warfarin on the day of the procedure only

ca-mccqe1 MCQ (SBA): Perioperative warfarin management