HAS-BLED Score (Bleeding Risk)

HAS-BLED Score Calculator

Bleeding Risk Assessment Tool

Hypertension (uncontrolled, >160 mmHg systolic)

Present

Abnormal renal function

Dialysis, transplant, or serum creatinine ≥2.26 mg/dL (200 μmol/L)

Abnormal liver function

Cirrhosis or bilirubin >2x normal with AST/ALT/AP >3x normal

Stroke history

Previous stroke

Bleeding history or predisposition

Previous bleeding or predisposition to bleeding

Labile INRs

Unstable/high INRs or poor time in therapeutic range (<60%)

For patients on warfarin

Elderly (>65 years)

Age >65 years

Drugs/alcohol use

Concomitant use of antiplatelets, NSAIDs, or alcohol abuse

HAS-BLED Score Result

0

Low bleeding risk

Interpretation:

The HAS-BLED score estimates the 1-year risk for major bleeding in patients with atrial fibrillation.

A score of ≥3 indicates high risk of bleeding and requires caution and regular review.

HAS-BLED: Hypertension, Abnormal renal/liver function, Stroke, Bleeding history or predisposition, Labile INR, Elderly (>65), Drugs/alcohol

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