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NIH Stroke Scale (NIHSS)

Standardized 15-item neurological exam quantifying stroke severity — used for eligibility screening and serial monitoring after thrombolysis/thrombectomy.

For healthcare professionals.These calculate a score or a measurement from values you enter. They do not diagnose, and they are no substitute for clinical judgement. If you are a patient, discuss any result with your own doctor rather than acting on it.

1a. Level of Consciousness

1b. LOC Questions (month, age)

1c. LOC Commands (open/close eyes, grip/release hand)

2. Best Gaze

3. Visual Fields

4. Facial Palsy

5a. Motor Arm — Left

5b. Motor Arm — Right

6a. Motor Leg — Left

6b. Motor Leg — Right

7. Limb Ataxia

8. Sensory

9. Best Language

10. Dysarthria

11. Extinction / Inattention (Neglect)

Enter the values above to see the result.

Source

Brott T, Adams HP Jr, Olinger CP, et al. Measurements of acute cerebral infarction: a clinical examination scale. Stroke. 1989;20(7):864-870.
National Institute of Neurological Disorders and Stroke. NIH Stroke Scale.

Shown for reference and checked against the source above. Confirm against current guidance before acting on it, and use your own clinical judgement.

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