Assess level of consciousness using Eye, Verbal, and Motor responses.
Score the best response in each category. Verbal cannot be tested in intubated patients and eyes may be swollen shut - record those as “NT” rather than 1. The total and its severity bands are a guide; management also depends on the individual components, pupils and imaging.
Get a personalized explanation of these results — what they actually mean for your situation, and how small changes would affect them.
No. Glasgow Coma Scale is free, with no signup required, and nothing you enter leaves your browser.
Glasgow Coma Scale is built on published formulas and reference ranges from established health sources. We revisit it periodically as guidance evolves; the "Last reviewed" date above shows when that last happened. If something looks wrong, tell us with the feedback button in the bottom-right corner.
No. Glasgow Coma Scale gives you a general estimate based on the inputs you provide, not a diagnosis. Existing conditions, medications, and individual history all change what a number actually means for you. Treat this as a starting point for a conversation with a doctor or other qualified health professional, not a substitute for one.