Glasgow Coma Scale

The Glasgow Coma scale provides an objective way to evaluate a patient`s level of consciousness and to detect changes from baseline functioning.

Eye Opening E
spontaneous 4
to speech 3
to pain 2
no response 1
Best Motor Response M
To Verbal Command:  
obeys 6
To Painful Stimulus:  
localizes pain 5
flexion-withdrawal 4
flexion-abnormal 3
extension 2
no response 1
Best Verbal Response V
oriented and converses 5
disoriented and converses 4
inappropriate words 3
incomprehensible sounds 2
no response 1


E + M + V = 3 to 15

  • 90% less than or equal to 8 are in coma
  • Greater than or equal to 9 not in coma
  • 8 is the critical score
  • Less than or equal to 8 at 6 hours - 50% die
  • 9-11 = moderate severity
  • Greater than or equal to 12 = minor injury


Coma is defined as: (1) not opening eyes, (2) not obeying commands, and (3) not uttering understandable words.

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