WFNS Subarachnoid Hemorrhage Grading System

Grade SAH using World Federation of Neurosurgical Societies scale based on GCS and motor deficit. WFNS 1: GCS 15; WFNS 5: GCS 3-6.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Grade SAH using World Federation of Neurosurgical Societies scale based on GCS and motor deficit. WFNS 1: GCS 15; WFNS 5: GCS 3-6

Each component has a specific meaning:

  • World Federation of Neurosurgical Societies scale based on GCS — The world federation of neurosurgical societies scale based on gcs recorded for the scenario being assessed.
  • Motor deficit — The motor deficit recorded for the scenario being assessed.

Note: Interpret the wfns sah grade result against the thresholds and context described above.

How to Use

Enter the World Federation of Neurosurgical Societies scale based on GCS, motor deficit for the scenario you are assessing. Grade SAH using World Federation of Neurosurgical Societies scale based on GCS and motor deficit. WFNS 1: GCS 15; WFNS 5: GCS 3-6. Use the wfns sah grade result to inform your calculation.

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Frequently Asked Questions