Anticoagulation and bleeding
11 of 142 calculators
- DOAC AFDOAC dosing in atrial fibrillationLabel dose of apixaban, rivaroxaban, dabigatran, or edoxaban for stroke prevention, from kidney function, age, and weight.
- EnoxaparinEnoxaparin dosing (treatment and prophylaxis)Weight- and kidney-adjusted enoxaparin dose rounded to available syringes.
- HeparinWeight-based heparin nomogram (Raschke)Initial bolus and infusion, and aPTT-guided rate changes, for unfractionated heparin.
- Warfarin startWarfarin initiation nomogram (5 mg)Day 3 to 6 doses by INR after starting warfarin 5 mg on days 1 and 2.
- Warfarin adjustWarfarin weekly dose adjustment (INR goal 2–3)Suggested change to the total weekly warfarin dose from the current INR.
- ArgatrobanArgatroban infusion rateStarting dose and pump rate for argatroban in HIT, with hepatic and critical-illness reductions.
- ProtamineProtamine dose for heparin or enoxaparin reversalProtamine dose by anticoagulant, amount, and time since the last dose.
- CHA₂DS₂-VAScCHA₂DS₂-VASc scoreStroke risk in nonvalvular atrial fibrillation to guide anticoagulation.
- HAS-BLEDHAS-BLED scoreOne-year major bleeding risk on anticoagulation for atrial fibrillation.
- CHADS₂CHADS₂ stroke risk in atrial fibrillationThe original 5-item stroke risk score for nonvalvular atrial fibrillation.
- HEMORR₂HAGESHEMORR₂HAGES bleeding riskBleeding risk on warfarin in older patients with atrial fibrillation.
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