NIH Stroke Scale Calculator
NIH Stroke Scale Calculator for Neurology. Higher scores generally indicate more severe stroke deficits and can support acute stroke communication, treatment pathways, and monitoring.
How this calculator works
The NIH Stroke Scale quantifies neurologic deficit severity across consciousness, gaze, visual fields, facial palsy, motor function, ataxia, sensation, language, dysarthria, and neglect.
Inputs used
- Standard NIHSS neurologic exam items
Clinical interpretation
Higher scores generally indicate more severe stroke deficits and can support acute stroke communication, treatment pathways, and monitoring.
Limitations and safety notes
NIHSS is weighted toward anterior circulation deficits and should not replace imaging, time-window assessment, contraindication review, or stroke-team judgment.
References
- Brott T, Adams HP Jr, Olinger CP, et al. Measurements of acute cerebral infarction: a clinical examination scale. Stroke. 1989.
- AHA/ASA acute ischemic stroke guideline resources.
Editorial review and citation methodology
Reviewed by the Quick Medical Calculator Editorial Team. Last reviewed: June 19, 2026. The review checks calculator inputs, intended population, interpretation, limitations, and source alignment.
- Prefer original validation studies for scoring systems and prediction tools.
- Use current specialty society guidance, transplant allocation policy, public health guidance, or regulator resources when they govern clinical use.
- Include limitations and safety notes when a calculator is population-specific, context-dependent, or unsuitable as a standalone decision tool.