🩹 HAS-BLED Anticoagulation Bleeding Risk

For AF patients on or about to start anticoagulation, to estimate bleeding risk and inform discussion with your doctor

1. 1. Uncontrolled hypertension (systolic persistently >160 mmHg)

2. 2. Abnormal renal function (chronic dialysis, transplant, or markedly raised creatinine)

3. 3. Abnormal liver function (cirrhosis, or markedly raised bilirubin/transaminases)

4. 4. Prior stroke

5. 5. Bleeding history or predisposition (prior major bleed, anemia, bleeding tendency)

6. 6. Labile INR (on warfarin: large INR swings, short time in range)

7. 7. Age over 65

8. 8. Concurrent medications raising bleeding risk (antiplatelets such as aspirin/clopidogrel, or NSAIDs)

9. 9. Heavy alcohol use (≥8 standard drinks per week)

For self-screening reference only — not a diagnosis and not a substitute for a doctor. Answers are scored in your browser and are not uploaded or saved.

Source: HAS-BLED anticoagulation bleeding risk score