Stroke TIA Public Triage Tool (ABCD2 community adaptation)

Age (years)

Initial Systolic Blood Pressure (mmHg)

Initial Diastolic Blood Pressure (mmHg)

Clinical Features at Symptom Onset (choose the single best option)

Symptom Duration

Diabetes Mellitus

Are neurological symptoms still present now?

Time since symptom onset (hours)

Output preference

Stroke TIA Public Triage Tool (ABCD₂ community adaptation): Explanation and Clinical Context
The ABCD₂ score estimates early stroke risk after a transient ischemic attack (TIA) based on five clinical variables: age ≥ 60 years (1), blood pressure ≥ 140/90 mmHg (1), clinical features (unilateral weakness 2; speech disturbance without weakness 1), symptom duration (≥ 60 minutes 2; 10–59 minutes 1), and diabetes (1). Total 0–7.

Risk stratification: Low (0–3), Moderate (4–5), High (6–7). Approximate risks: 2-day 1.0–8.1%; 7-day 1.2–11.7%; 90-day 3.1–17.8%.

Community adaptation: This version adds triage guidance. Ongoing symptoms or onset ≤ 24h → emergency. High score → urgent evaluation; low score → early clinic follow-up.

References:
Rothwell PM, Giles MF, Flossmann E, et al. Lancet. 2005;366:29–36.
Johnston SC, Rothwell PM, Nguyen-Huynh MN, et al. Lancet. 2007;369:283–292.
NICE NG128, 2019.
AHA/ASA Guidelines on TIA Management.

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