Nih Stroke Calculator
Use the Nih Stroke Calculator for a transparent, instant calculation with validated inputs and cited sources. For a query such as “nih stroke scale”, enter the matching values and units below and review the stated assumptions.
How to use this calculator
Enter the requested values and units.
Review the assumptions and any warnings shown with the result.
Use the result together with the cited source and your real-world requirements.
Formula
Validate and sum the 15 labeled NIH Stroke Scale item scores; no neurological findings are inferred from absent inputs.
Worked example
Worked example: Inputs: 1a. Level of consciousness: 0 — Alert and keenly responsive; 1b. LOC month and age questions: 0 — Both correct; 1c. LOC eye and hand commands: 0 — Both correct; 2. Best gaze: 0 — Normal; 3. Visual fields: 0 — No visual loss; 4. Facial palsy: 0 — Normal symmetrical movement; 5a. Motor left arm: 0 — No drift for the full test interval; 5b. Motor right arm: 0 — No drift for the full test interval; 6a. Motor left leg: 0 — No drift for the full test interval; 6b. Motor right leg: 0 — No drift for the full test interval; 7. Limb ataxia: 0 — Absent; 8. Sensory: 0 — Normal; 9. Best language: 0 — No aphasia; 10. Dysarthria: 0 — Normal; 11. Extinction and inattention: 0 — No abnormality. Outputs: Total score: 0.
Assumptions and limits
- The result depends on the values, units, and assumptions entered. It does not infer missing context.
- Review the assumptions and any warnings shown with the result.
Sources
- National Institute of Neurological Disorders and Stroke: NIH Stroke ScaleReference material reviewed for the stated method, units, or domain. Confirm that its scope matches your use case. Reviewed 2026-08-14.
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Frequently asked questions
How does the Nih Stroke Calculator work?
Validate and sum the 15 labeled NIH Stroke Scale item scores; no neurological findings are inferred from absent inputs.
What should I enter?
1a. Level of consciousness, 1b. LOC month and age questions, 1c. LOC eye and hand commands, 2. Best gaze, 3. Visual fields, 4. Facial palsy, 5a. Motor left arm, 5b. Motor right arm, 6a. Motor left leg, 6b. Motor right leg, 7. Limb ataxia, 8. Sensory, 9. Best language, 10. Dysarthria, 11. Extinction and inattention
What should I verify?
Review the assumptions and any warnings shown with the result. The result depends on the values, units, and assumptions entered. It does not infer missing context.
Last updated 2026-08-14 · nihss-15-item-labeled-v3 · opportunity-content-2026-08-14 · Trusty Calculator Editorial Team