For clinical reference only — does not replace local trust guidelines or clinical judgement.
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HAS-BLED
Anticoagulation bleeding risk
Calculator
Hypertension (SBP > 160)
+1
Abnormal renal function (dialysis, Cr > 200)
+1
Abnormal liver function (cirrhosis, bili 2×, AST/ALT 3×)
+1
Stroke history
+1
Bleeding history or predisposition
+1
Labile INR (TTR < 60%)
+1
Elderly (age > 65)
+1
Drugs predisposing to bleeding (antiplatelet, NSAID)
+1
Alcohol ≥ 8 units / week
+1
Interpretation
Score
0
Low risk
Use to identify and modify reversible bleed risk factors. Score alone does not contraindicate anticoagulation.
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