ToolsCalculators
Los Angeles Motor Scale (LAMS)
Prehospital motor score screening for large-vessel-occlusion stroke.
Los Angeles Motor Scale (LAMS)
Facial droop
Arm drift
Grip strength
Result0 points / 5
Score <4 makes large-vessel occlusion less likely.
When to use
- Rapid field triage of suspected acute stroke to gauge probability of large-vessel occlusion.
Formula
Sum of facial droop (0-1), arm drift (0-2) and grip strength (0-2); range 0-5. Score >=4 suggests large-vessel occlusion.