ABCD² Score for TIA
Use completed years only. This implementation rejects ages under 16 years and decimal ages.
years
Use whole mmHg. The blood-pressure component adds 1 point when systolic pressure is >=140 mmHg or diastolic pressure is >=90 mmHg.
mmHg
Use whole mmHg. The blood-pressure component adds 1 point when systolic pressure is >=140 mmHg or diastolic pressure is >=90 mmHg.
mmHg
Choose only the single highest-scoring category. If unilateral weakness is present, do not add speech disturbance separately.
Use whole minutes. A duration of 10-59 minutes scores 1 point; >=60 minutes scores 2 points.
minutes
Clinical noticeEducational support only for historical post-TIA risk stratification. Interpret with urgent specialist assessment and current guidelines.
Context and use
ABCD² = age >= 60 (1) + blood pressure >= 140/90 mmHg (1) + clinical features (0-2) + symptom duration (0-2) + diabetes (1)
Unilateral weakness scores 2 points; speech disturbance without weakness scores 1; duration 10-59 min scores 1 and >=60 min scores 2.
This page shows only the original score and its historical 2-day risk percentages; it does not replace urgent modern TIA assessment with imaging and full clinical context.
