🧠 ABCD² Score (Stroke Risk After TIA)
Estimate short-term stroke risk after a transient ischaemic attack with the ABCD² score.
ABCD² Score (Stroke Risk After TIA)
Age ≥ 60
BP ≥ 140/90 mmHg
Clinical features
Duration
Diabetes
When to use
Risk-stratify TIA, though current pathways favour rapid specialist review for all.
How it works
Age ≥ 60 (1), BP ≥ 140/90 (1), clinical features (weakness 2 / speech 1), duration (≥60 min 2 / 10–59 1), diabetes (1). 0–3 low, 4–5 moderate, 6–7 high.
Key points
- Limited discrimination — do not use to defer assessment.
- Most services urgently evaluate and image all TIAs.
- Combine with imaging (carotid, brain) and ECG.
References
Decision support for licensed clinicians only; not a substitute for clinical judgement, diagnosis or local protocols.