ABCD2 TIA Risk Score Calculator
Enter five clinical parameters to calculate the ABCD2 score and estimate 2-day stroke risk after a TIA.
Use the ABCD2 TIA Risk Score Calculator
Clinical Parameters
A Age
B Blood Pressure at Presentation
C Clinical Features (dominant symptom)
D Duration of Symptoms
D Diabetes History
Result
ABCD2 Score (0 – 7)
—
| Factor | Value | Points |
|---|---|---|
| Total | ||
For clinical decision support only. Always combine with full clinical assessment and specialist judgment.
Summary
The ABCD2 score is a validated clinical prediction tool used to estimate the short-term risk of stroke within 2 days following a transient ischemic attack (TIA). It scores five factors — Age, Blood pressure, Clinical features, Duration of symptoms, and Diabetes — on a 0–7 point scale. Higher scores indicate greater stroke risk and help clinicians decide on urgency of workup and hospital admission.
How it works
- Select the patient's age: 60 or older scores 1 point, under 60 scores 0.
- Enter whether blood pressure at presentation was elevated (systolic ≥ 140 mmHg or diastolic ≥ 90 mmHg).
- Choose the dominant clinical feature: unilateral weakness scores 2, speech disturbance without weakness scores 1, other features score 0.
- Select symptom duration: 60 minutes or longer scores 2, 10–59 minutes scores 1, under 10 minutes scores 0.
- Indicate whether the patient has a history of diabetes.
- The calculator sums the points and displays the total score with corresponding 2-day stroke risk estimate.
Use cases
- Triage TIA patients in the emergency department for urgent vs. routine workup.
- Support clinical decision-making for hospital admission after TIA.
- Communicate quantified stroke risk to patients and families.
- Identify high-risk patients who need immediate neurology consultation.
- Document risk stratification in clinical notes.
- Teach residents and students about TIA risk factors.