Table 1 Japan Coma Scale for grading of impaired consciousness.
Grade | Consciousness Level |
|---|---|
0 | Fully conscious |
1-digit code | The patient is awake without any stimuli, and is: |
1 | Almost fully conscious |
2 | Unable to recognize time, place, and person |
3 | Unable to recall name or date of birth |
2-digit code | The patient can be aroused (then reverts to previous state after cessation of stimulation): |
10 | Easily by being spoken to (or is responsive with purposeful movements, phrases, or words)* |
20 | With loud voice or shaking of shoulders (or is almost always responsive to very simple words like yes or no, or to movement)* |
30 | Only by repeated mechanical stimuli |
3-digit code | The patient cannot be aroused with any forceful mechanical stimuli, and: |
100 | Responds with movements to avoid the stimulus |
200 | Responds with slight movements including decerebrate and decorticate posture |
300 | Does not respond at all except for change in respiratory rhythm |
