MDCalc

ATRIA Bleeding Risk Score

Determines bleeding risk for patients on warfarin.

Anemia
Hemoglobin <13 g/dL (Male), <12 g/dL (Female)
Severe Renal Disease
Glomerular filtration rate <30 mL/min or dialysis-dependent
Age ≥ 75 years
Any Prior Hemorrhage Diagnosis
Ex: GI bleed, intracranial hemorrhage
Hypertension History

Result:

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Critical Actions
  • <4 points - low risk
  • 4 points - intermediate risk
  • >4 points - high risk

Patient specific risks and benefits of anticoagulation must be carefully weighed in all patients who are potential candidates for long-term warfarin therapy.