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Clinical Calculator Cardiology V1.0

HAS-BLED Score

Major Bleeding Risk in Atrial Fibrillation Patients on Anticoagulation
Primary Reference
Pisters R, et al.
Chest 2010; 138:1093–1100
Patient Parameters
1. Hypertension (Uncontrolled, >160 Systolic)
2. Abnormal Renal Function
Dialysis, transplant, Cr >2.26 mg/dL
3. Abnormal Liver Function
Cirrhosis, bilirubin >2×, AST/ALT >3×
4. Prior Stroke
5. Prior Major Bleeding
Or predisposition to bleeding
6. Labile INR
TTR <60% or unstable/high INRs
7. Age > 65
8. Drugs (Antiplatelets, NSAIDs)
9. Alcohol (≥8 drinks/week)

Analysis Required

Enter patient parameters to calculate
bleeding risk assessment.