Glasgow Coma Scale
Assess level of consciousness by selecting Eye, Verbal, and Motor responses to calculate the GCS score and severity classification.
Eye Opening (E)
Verbal Response (V)
Motor Response (M)
Medical disclaimer: This tool is intended for educational and reference purposes only. GCS assessment requires direct patient evaluation by a qualified healthcare professional. Do not use this tool as a substitute for clinical judgment or professional medical advice.
GCS Result
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Eye (E)
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Verbal (V)
—
Motor (M)
Total GCS Score
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(Range: 3 – 15)
Severity
3 (Severe)
15 (Normal)
Severity Reference
Mild injury
GCS 13–15
Moderate injury
GCS 9–12
Severe injury
GCS 3–8
Summary
Assess level of consciousness by selecting Eye, Verbal, and Motor responses to calculate the GCS score and severity classification.
How it works
- Select the best Eye Opening response observed, scored 1 to 4.
- Select the best Verbal Response, scored 1 to 5.
- Select the best Motor Response, scored 1 to 6.
- The tool sums the three subscores into a total GCS of 3 to 15 and classifies severity as Mild (13–15), Moderate (9–12), or Severe (3–8).
Use cases
- Initial neurological assessment of trauma patients in emergency settings.
- Monitoring changes in a patient's conscious state over time in the ICU.
- Triage decisions for head injury severity in pre-hospital care.
- Communicating level of consciousness consistently across clinical teams.
- Predicting outcomes and guiding treatment intensity for brain injury patients.
Frequently Asked Questions
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Last updated: 2026-05-23 ·
Reviewed by Nham Vu