3 Neurology Calculators – NIHSS, ABCD² & Hunt-Hess
Neurology calculators cover stroke severity, transient-ischemic-attack risk-factor scoring, and subarachnoid-hemorrhage grading. Each belongs to a distinct disease and assessment context.
Glasgow Coma Scale is not duplicated here; GCS and RASS remain in Emergency Medicine & Critical Care, where they are grouped with critical-care neurologic and sedation assessments.
All medical calculatorsSources and review processMedical disclaimer
Choose a calculator by task
Use the task groups below to find the calculator whose formula, intended population, required measurements, and purpose match the task.
Stroke and transient ischemic attack
Use NIHSS for structured stroke-deficit scoring or ABCD² for its limited post-TIA risk-factor model after the clinical context is established.
Subarachnoid-hemorrhage grading
Use Hunt-Hess only for its stated aneurysmal subarachnoid-hemorrhage clinical grading context.
How to choose a calculator in this category
- Match NIHSS, ABCD², or Hunt-Hess to its specific stroke, TIA, or subarachnoid-hemorrhage context.
- Use NIHSS as a structured deficit score without substituting it for a complete neurologic examination.
- Open Emergency Medicine & Critical Care for GCS and RASS rather than copying those instruments into this category.
Important limits
- ABCD² cannot diagnose TIA or independently determine investigation, admission, or discharge.
- NIHSS may not capture every clinically important neurologic deficit or posterior-circulation presentation.
- Hunt-Hess does not establish subarachnoid hemorrhage and does not select treatment.