Hunt and Hess Scale Calculator

Hunt & Hess Scale

Clinical Decision Tool

Grades clinical severity after aneurysmal subarachnoid haemorrhage.

Clinical Grade

Grade I — asymptomatic or minimal headache and slight nuchal rigidity +1 Grade II — moderate/severe headache, nuchal rigidity, no deficit except cranial nerve palsy +2 Grade III — drowsiness, confusion or mild focal deficit +3 Grade IV — stupor, moderate/severe hemiparesis, possible early decerebrate rigidity +4 Grade V — deep coma, decerebrate rigidity, moribund appearance +5

Clinical Decision Support Only

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