Best motor response Score
Obeys command 6
Localized response 5
Withdrawal 4
Flexor response 3
Extensor posturing 2
No response 1
Best verbal response
Oriented 5
Confused/disoriented 4
Inappropriate speech 3
Incomprehensible speech 2
No response 1
Best Eye Opening Response
Spontaneous 4
In response to speech 3
In response to pain 2
No eye opening 1
Interpretation:
GCS 13-15: Mild brain injury (mortality rate < 1%);
GCS 12-9: Moderate brain injury (mortality rate < 5%);
GCS < 8: Severe brain injury (mortality rate > 40%)