ABCD² Score Calculator (TIA Stroke Risk)

Calculate the ABCD² score to estimate the 2-day stroke risk after a transient ischaemic attack (TIA).

Age

Blood Pressure at Presentation

Clinical Features

Duration of TIA Symptoms

Diabetes mellitus

How to Use the ABCD² Calculator

Select age ≥60 years (1 point) or <60 (0 points).
Select whether BP ≥140/90 mmHg (1 point).
Select clinical features (0–2 points).
Select symptom duration (0–2 points).
Select presence of diabetes (1 point).

使用场景

•Estimating 2-day stroke risk after TIA.
•Guiding hospital admission decisions.
•Prioritising urgent neurovascular workup.

公式

ABCD² = Age(0-1) + BP(0-1) + Clinical features(0-2) + Duration(0-2) + Diabetes(0-1). Max = 7.

常见问题

What is the ABCD² score?

The ABCD² score is used to estimate the short-term risk of stroke after a transient ischaemic attack (TIA). It helps guide decisions about hospital admission and urgency of workup.

How is the ABCD² score interpreted?

Score 0–3: Low risk (~1% 2-day stroke risk). Score 4–5: Moderate (~4%). Score 6–7: High (~8%). Higher scores warrant urgent evaluation and admission.

Medical disclaimer

This calculator is for educational purposes only. It does not replace professional medical evaluation. Always consult a qualified healthcare provider for clinical decisions.