1. Euphoria: This is the initial stage of intoxication, characterized by BAC level at 0.03 to 0.12%. In this phase, person is much more relaxed, over confident and appears without any inhibitions.
2. Lethargy: In this phase, BAC ranges from 0.09 to 0.23%. The person stars losing body balance, his vision gets blurred and appears sleepy.
3. Confusion: BAC gets increased at 0.17 to 0.28%. Name of this phase rightly denotes the status of the subject as he appears intense in his emotions and feelings. Dizziness and Nausea are peculiar features of this stage.
4. Stupor: This stage is marked by the BAC count ranging from 0.25 to 0.39%, where persons impaired start losing and again gaining consciousness at frequent intervals. Due to this feature, there is high amount of risk of coma.
5. Coma: BAC ranges from 0.35 to 0.50%. Patient becomes unconscious, body reflexes become poor, there is drop in pulmonary beats with decrease in breathing.
6. Death: BAC exceeds the mark of 0.50%. This is a very fatal stage marked by Central Nervous System failure, which ultimately leads to death.
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