Use what most Paramedics and stroke centers use - the Cincinatti Stroke Scale
FAST
Facial Droop
Arm Drift
Slurred Speech
Time - is of the essence
from one study (of 100 people, so not a huge N, but…)
“For facial weakness, the sensitivity of the participants’ assessments
was 74% andthe specificity was 94%. For arm weakness, the sensitivity
was 97% andthe specificity was 72%. For speech deficits, the sensitivity
was 96% andthe specificity was 96%.”
http://www.tandfonline.com/doi/abs/10.1080/10903120590962283
The assessors in the study were untrained laypeople.
