F β FACIAL DROOP
Have patient smile or show teeth.
βNormal
Both sides of face move equally
βAbnormal
One side of face does not move as well as the other
A β ARM DRIFT
Patient closes eyes, holds both arms straight out for 10 sec.
βNormal
Both arms move the same OR neither moves
βAbnormal
One arm drifts down or does not move at all
S β SPEECH
Have patient say "You can't teach an old dog new tricks."
βNormal
Patient uses correct words with no slurring
βAbnormal
Slurred, wrong words, or unable to speak
T β TIME
Establish LAST KNOWN WELL time (not symptom discovery time). This drives the thrombolytic / thrombectomy window.
RESULT
Any 1 of 3 positive
β ~72% probability of stroke Β· Activate stroke alert Β· Glucose, BP, EKG Β· Get NIHSS at receiving facility
β Note: Cincinnati screens anterior-circulation strokes well but misses many posterior-circulation strokes (vertigo, ataxia, diplopia, dysarthria-only). If story sounds neuro and CPSS is negative, do NOT rule out stroke β consider FAST-ED or full NIHSS.