Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 10/18/2025

Management of Ethanol Toxicity

Differential Diagnosis Considerations

  • The American Thoracic Society recommends ruling out toxic co-ingestions systematically, particularly methanol or ethylene glycol if there is unexplained metabolic acidosis with elevated anion gap, as 44% of intentional poisonings involve multiple drugs or ethanol combinations 1
  • The American College of Medical Toxicology suggests screening for other substances in intentional poisonings, as multiple drug or ethanol combinations are common 1
  • Measurement of anion gap (Na+ + K+ - Cl- - HCO3-) is recommended to detect toxic alcohol co-ingestion, with values >27 mmol/L suggesting severe methanol or ethylene glycol poisoning requiring different management 3

REFERENCES

2

Treatment of Methanol Poisoning with Alcohol [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025