Ethylene Glycol & Methanol Poisoning
Toxic alcohol ingestion is a medical emergency. Ethylene glycol (antifreeze) and methanol are metabolized to deadly acids that cause permanent kidney damage, blindness, and death. Emergency dialysis removes the toxin and its metabolites before irreversible harm occurs.
Understanding Toxic Alcohol Poisoning
Ethylene glycol and methanol are not directly toxic—their danger lies in their metabolites. The liver converts these alcohols into deadly acids that cause multi-organ failure if not removed rapidly.
Key toxicology considerations:
- Ethylene glycol: Metabolized to glycolic acid and oxalic acid, which precipitate as calcium oxalate crystals in kidney tubules
- Methanol: Converted to formic acid, causing optic nerve damage, blindness, and severe metabolic acidosis
- Osmol gap: Early marker before acidosis develops; high gap suggests toxic alcohol presence
- Anion gap acidosis: Indicates metabolites have already formed; urgent dialysis needed
Indications for Emergency Dialysis
Every hour matters. Dialysis removes both the parent alcohol and toxic metabolites. Early intervention can completely prevent kidney damage and blindness.
Our Approach to Toxic Alcohol Dialysis
Specialized protocols for rapid toxin removal and metabolic stabilization
Immediate Emergency Response
On-site within 60 minutes for poison emergencies. Direct communication with poison control centers and emergency physicians.
High-Efficiency Toxin Clearance
Extended high-flux hemodialysis sessions (6-8 hours) to ensure complete removal of toxic alcohols and their metabolites.
Metabolic Acidosis Correction
Bicarbonate dialysate and continuous monitoring to rapidly normalize pH and prevent end-organ damage from severe acidosis.
Fomepizole Coordination
Integrated management with fomepizole or ethanol antidote therapy. Dialysis removes fomepizole, so we redose during treatment.
Toxicology Collaboration
Direct consultation with poison control, medical toxicologists, and your emergency team for complex cases.
Kidney Recovery Monitoring
Post-dialysis monitoring for oxalate nephropathy and delayed kidney injury. Follow-up care to confirm renal recovery.
For Emergency Physicians & Toxicologists
Toxic alcohol ingestion requires rapid decision-making. We provide immediate nephrology support with expertise in toxicological dialysis, working alongside your team and poison control to optimize patient outcomes.
- Immediate phone consultation with nephrology attending
- Rapid dialysis initiation—don't wait for level confirmation if clinical suspicion is high
- Fomepizole dosing guidance during dialysis sessions
- Experience with pediatric toxic ingestions
- Coordination with medical toxicology and poison control
- Post-dialysis monitoring for delayed complications
Treatment Protocols
EXTRIP Guidelines
Following extracorporeal treatment recommendations for toxic alcohol poisoning
Dialysis Duration
6-8 hour sessions until level <20 mg/dL and acidosis resolved
Antidote Management
Fomepizole 15 mg/kg redosed every 4 hours during dialysis (vs. 12 hours off dialysis)
Frequently Asked Questions
Should dialysis wait for confirmation of toxic alcohol levels?
No. If clinical suspicion is high (osmol gap >10, unexplained anion gap acidosis, history suggesting ingestion), dialysis should be initiated empirically. Waiting for level confirmation can allow irreversible damage. Levels can take hours to result, while metabolites continue to form.
How long does dialysis need to continue?
Dialysis continues until the toxic alcohol level is <20 mg/dL, metabolic acidosis has resolved, and the osmol gap has normalized. This typically requires 6-8 hours of continuous hemodialysis, but may need to be repeated if levels rebound.
Can fomepizole alone be sufficient without dialysis?
Fomepizole blocks alcohol dehydrogenase, preventing metabolism of the parent alcohol to toxic metabolites. In mild cases (level <50 mg/dL, no acidosis, normal kidney function), fomepizole alone may suffice. However, dialysis is faster, removes existing metabolites, and is mandatory for severe cases.
What about accidental pediatric antifreeze ingestion?
Pediatric cases require immediate attention even for small ingestions. We have experience with pediatric dialysis and can rapidly deploy age-appropriate equipment. A child ingesting even a small amount of ethylene glycol needs emergent evaluation and likely treatment.
How do you handle suspected intentional ingestions?
We treat the medical emergency first. Our team is experienced in working with psychiatric services and can provide dialysis in settings with appropriate safety precautions. Medical stabilization takes priority, with psychiatric evaluation once the patient is medically cleared.
Toxic Ingestion Emergency?
Don't wait for level results when clinical suspicion is high. Call us immediately for emergency dialysis consultation. Every hour of delay allows more toxic metabolites to form.