Eye response | 4 | Eyelids open, tracking or blinking to command |
3 | Eyelids open but not tracking |
2 | Eyelids closed but open to a loud voice |
1 | Eyelids closed but open to pain |
0 | Eyelids remain closed with pain |
Motor response | 4 | Thumbs-up, fist or peace sign |
3 | Localising to pain |
2 | Flexion response to pain |
1 | Extension response to pain |
0 | No response to pain, or generalised myoclonic status |
Brainstem reflexes | 4 | Normal pupil and corneal reflexes present |
3 | One pupil wide and fixed |
2 | Pupil or corneal reflexes absent |
1 | Pupil and corneal reflexes absent |
0 | Absent pupil, corneal and cough reflex |
Respiration | 4 | Not intubated, regular breathing pattern |
3 | Not intubated, Cheyne–Stokes breathing pattern |
2 | Not intubated, irregular breathing pattern |
1 | Breaths above ventilator rate |
0 | Breaths at ventilator rate, or apnoea |