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ABCD2 Score (TIA Stroke Risk)

1.0.0

Calculates the ABCD2 score (0–7) after suspected TIA from age, blood pressure, clinical features, symptom duration, and diabetes, and reports the classic 2-day, 7-day, and 90-day stroke-risk tiers from the validation cohorts.

Also searched as: risk stratification · transient ischemic attack · emergency · brain

Age ≥ 60 years (1 point)
Blood pressure ≥ 140/90 mmHg at presentation (SBP ≥140 or DBP ≥90) (1 point)
Clinical features of the TIA

Choose the highest applicable feature; unilateral weakness outranks speech-only.

Duration of symptoms
Diabetes mellitus (1 point)
Information
Incomplete input
  • Please provide: age ≥60, blood pressure criterion, clinical features, symptom duration, diabetes status.

How this tool works

ABCD2 stratifies short-term stroke risk after TIA to support triage (expedited outpatient work-up vs admission). Points: age ≥60 (1), BP ≥140/90 at presentation (1), unilateral weakness (2) or speech disturbance without weakness (1), duration ≥60 min (2) or 10–59 min (1), and diabetes (1). Clinical-feature and duration categories are mutually exclusive within each domain. Absolute risks from older cohorts overestimate event rates in modern rapid-access pathways; the score does not replace vascular imaging, ECG/AF detection, or clinical judgment for high-risk mechanisms (e.g. critical carotid stenosis).

References

Implemented from the cited published sources. Educational use only; confirm against current guidelines before clinical use.

Clinical questions that use this

Vetting guides that reach for this tool.

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