Cincinnati Prehospital Stroke Severity Scale (CPSSS)62
| Item | Points |
|---|---|
| Gaze | |
| Conjugate gaze deviation (≥1 NIHSS gaze) | 2 |
| Consciousness/commands | |
| Incorrectly answers one LOC question and one command on NIHSS (age, current month, close eyes, open and close hand) (≥1 on NIHSS) | 1 |
| Motor arm | |
| Cannot hold arm up (left, right or both) for 10 s before it falls to bed (≥2 on NIHSS) | 1 |
| Total score | 0–4 |
CPSSS ≥2: 83% sensitivity, 40% specificity, 0.4 negative likelihood ratio for large vessel occlusion.
CPSSS ≥2: 92% sensitivity, 51% specificity, 0.15 negative likelihood ratio for NIHSS score ≥15.
LOC, level of consciousness; NIHSS, National Institutes of Health Stroke Scale.