🧠 Los Angeles Motor Scale (LAMS)
Screen for large-vessel occlusion with the Los Angeles Motor Scale (LAMS).
Los Angeles Motor Scale (LAMS)
Facial droop
Arm drift
Grip strength
When to use
Prehospital/ED triage for possible thrombectomy candidates.
How it works
Facial droop (0–1) + arm strength (0–2) + grip (0–2); total 0–5. ≥ 4 suggests large-vessel occlusion.
Key points
- ≥ 4 suggests LVO and possible thrombectomy benefit.
- Fast and prehospital-friendly.
- Confirm with vascular imaging.
References
Decision support for licensed clinicians only; not a substitute for clinical judgement, diagnosis or local protocols.