The RACE scale is a simple and rapid neurological scale designed to evaluate patients with acute stroke at a prehospital level to detect cases with a high probability of having a large vessel occlusion, candidates to be treated with endovascular techniques in a comprehensive stroke center.
The RACE scale is a simplification of the NIHSS scale using those items with a higher ability to predict the presence of a large vessel occlusion. The RACE scale evaluates 5 items: facial palsy, brachial paresis, crural paresis, oculocephalic deviation and aphasia/agnosia, with a total score of 0-9.
A score> 4 allows the suspicion of a large vessel occlusion with a sensitivity of 85% and specificity of 69%.
You can read the original paper published in Stroke Journal here.