Version July 2025
| Serum ethanol concentration | Clinical effects |
| 20-50 mg/dL (4.4-11 mmol/L) | Diminished fine motor coordination |
| 50-100 mg/dL (11-22 mmol/L) | Impaired judgment; impaired coordination |
| 100-150 mg/dL (22-33 mmol/L) | Difficulty with gait and balance |
| 150-250 mg/dL (33-55 mmol/L) | Lethargy; difficulty sitting upright without assistance |
| 300 mg/dL (66 mmol/L) | Coma in the non-habituated drinker |
| 400 mg/dL (88 mmol/L) | Respiratory depression |
