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The Los Angeles Motor Scale (LAMS): A measure to characterize stroke severity in the field.
This validated tool allows the rapid performance of a five-point stroke evaluation, identifying a score threshold associated with a large vessel occlusion
It measures facial smile or grimace, arm drift, and grip strength.
Facial Droop
Absent 0
Present +1
Arm drift
Absent 0
Drifts downward +1
Falls rapidly +2
Grip Strength
Normal 0
Weak +1
No grip +2
RESULTS:
0-1: LVO less likely. Stroke is MINOR or MODERATE in severity
2-3: LVO less likely. Stroke is MINOR or MODERATE in severity
4-5: LVO likely. Stroke is SEVERE and requires acute treatment
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