ABCD2 score

Estimates the risk of stroke after a suspected transient ischemic attack (TIA)


Component

Criteria

Points

Age

≥ 60 years

1


< 60 years

0

Blood

Pressure

Systolic ≥ 140 mmHg or

Diastolic ≥ 90 mmHg

1


Systolic < 140 mmHg and

Diastolic < 90 mmHg

0

Clinical

features

Unilateral weakness

2


Speech disturbance without

weakness

1


Other symptoms

0

Duration

≥ 60 minutes

2


10-59 minutes

1


< 10 minutes

0

Diabetes

Present

1


Absent 

0


Scoring Interpretation:

A. 0-3 points: Low risk of stroke (approximately 1% risk within 2 days)

B. 4-5 points: Moderate risk of stroke (approximately 4% risk within 2 days)

C. 6-7 points: High risk of stroke (approximately 8% risk within 2 days)


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