What NIHSS score indicates severe stroke?

NIHSS 0=no stroke, 1-4=minor, 5-15=moderate, 16-20=moderate-to-severe, 21-42=severe stroke requiring aggressive intervention.

Does NIHSS predict tPA eligibility?

High NIHSS (>25) increases hemorrhage risk with tPA but is not an absolute contraindication; clinical judgment applies.

NIHSS ≤1 or improvement of ≥10 points from baseline generally indicates good neurological outcome.

Calculate NIHSS score (0-42) to quantify stroke severity — guides thrombolysis and intervention decisions.

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