Commonly available as automotive antifreeze, ethylene glycol can cause toxicity and death if ingested. It is metabolized to several aldehyde and acid intermediates that can cause severe metabolic acidosis, central nervous system derangements, cardiorespiratory failure, and acute renal failure. A presumptive diagnosis can often be made by assessment of the anion gap and the osmol gap and the finding of metabolic acidosis. Corroborating findings include oxalate crystalluria and urine that fluoresces on exposure to ultraviolet light. Recognition is important because there are specific treatment methods available. Therapy consists of administering sodium bicarbonate to counter the acidosis, ethanol to slow the generation of toxic metabolites, and vitamin cofactors, which may speed detoxification of these intermediates. Hemodialysis is employed to remove both ethylene glycol and its metabolites, to correct the acidbase disturbances, and as treatment for acute renal failure.
A Case of Acute Renal Failure Following Ethylene Glycol Intoxication in a Dog