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%)