Which anticoagulant is most commonly used during hemodialysis to keep the circuit from clotting?

Heparin is administered during dialysis because of its rapid onset and short half-life, preventing clotting in the extracorporeal circuit; this raises bleeding risk, so dental care is best scheduled the day after dialysis.Other options: Warfarin, aspirin, and clopidogrel are not the intradialytic circuit anticoagulant.Key exam takeaway: Dialysis uses heparin; treat dental patients the day after dialysis to avoid the heparin window.