What are the three components of the Glasgow Coma Scale?

The GCS evaluates three categories of responsiveness: Eye Opening, Verbal Response, and Motor Response.

What is the range of a GCS score?

The scores range from a minimum of 3 (deep coma or death) to a maximum of 15 (fully awake and oriented).

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Escala de Coma de Glasgow (GCS)

Assess a patient's conscious state using the Glasgow Coma Scale, crucial for neurological evaluations.

The Glasgow Coma Scale (GCS) is the world's most widely used objective tool for assessing a patient's level of consciousness following a brain injury or medical emergency. By evaluating three specific areas of responsiveness—Eyes, Verbal, and Motor—clinicians can track changes in a patient's neurological status over time and communicate severity clearly to other members of the healthcare team. A GCS score is a vital component of the initial assessment in trauma bays and emergency departments globally, helping to guide decisions on airway management and the need for advanced imaging.

Eye Opening (E)

Verbal Response (V)

Motor Response (M)

Total GCS Score

15/ 15

Mild Head Injury

Normal to mild impairment. Most patients will recover without intervention.

Medical Disclaimer: This tool is for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.

Evidence & References

Teasdale G, Jennett B. Assessment of coma and impaired consciousness. A practical scale. Lancet. 1974.

Como funciona

The calculator sums the scores from the three categories. Eye response is rated 1-4, Verbal response 1-5, and Motor response 1-6. The total sum determines the overall GCS score, which the tool then categorizes into Mild, Moderate, or Severe based on standard clinical thresholds.

Fórmula de cálculo

GCS = E + V + M

Calculation Examples

1. **Fully Awake**: Spontaneous eye opening (4), oriented conversation (5), obeys commands (6) = **GCS 15**. 2. **Severe Injury**: Opens eyes to pain (2), incomprehensible sounds (2), decerebrate extension (2) = **GCS 6**.

Why use this tool in your daily life?

Objectivity saves lives. This service ensures that neurological assessments are consistent across shifts and providers, providing the reliable data needed to identify intracranial pressure changes and other life-threatening neurosurgical emergencies.