Glasgow Coma Scale

The Glasgow Coma Scale (GCS) is a neurological scale that is used to assess the conscious state of a person. It is used to measure the level of consciousness in a person following a traumatic brain injury. 

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The Glasgow Coma Scale (GCS) is a tool used to assess a patient's level of consciousness and is used in both pre-hospital and hospital settings. In order to complete the GCS, the patient must be alert, awake, and able to interact with the examiner. Patients must also be able to understand and respond to verbal and motor commands.


Questions for Glasgow Coma Scale



Eye opening Response

The answer should be a single choice:
  1. Spontaneous--open with blinking at baseline
  2. To verbal stimuli, command, speech
  3. To pain only (not applied to face)
  4. No response

Verbal Response

The answer should be a single choice:
  1. Oriented
  2. Confused conversation, but able to answer questions
  3. Inappropriate words
  4. Incomprehensible speech
  5. No response

Motor Response

The answer should be a single choice:
  1. Obeys commands for movement
  2. Purposeful movement to painful stimulus
  3. Withdraws in response to pain
  4. Flexion in response to pain (decorticate posturing)
  5. Extension response in response to pain (decerebrate posturing)
  6. No response

Scales Similar to Glasgow Coma Scale

  • The Rancho Los Amigos Scale
  • The Glasgow Outcome Scale
  • The Full Outline of Unresponsiveness (FOUR) Score
  • The Westmead Post-traumatic Amnesia Scale
  • The Glasgow Coma Scale for Brain-Injured Children
  • The Pediatric Glasgow Coma Scale

Here are some FAQs and additional information
Glasgow Coma Scale

What is the Glasgow Coma Scale (GCS)?

The Glasgow Coma Scale (GCS) is a measure used to assess a patient’s level of consciousness. It evaluates a person’s ability to respond to stimuli and is commonly used in the field of neurology.

How is the GCS score calculated?

The GCS score is calculated by assessing the patient’s verbal, motor, and eye-opening responses. Each response is given a numeric score, ranging from 3 (deep unconsciousness) to 15 (fully alert). The total score is then used to determine the patient’s level of consciousness.

Who developed the GCS?

The GCS was developed in 1974 by the neurosurgeons Bryan Jennett and Graham Teasdale.

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