Toxicology USMLE Step 1 Practice Question
A 40-year-old man is found unresponsive in his garage next to an open antifreeze container. He presents with BP 102/68, HR 118, RR 22, temperature 36.8°C, and SpO2 98% on room air. He has flank pain, confusion, and metabolic acidosis with serum osmolal gap of 18 mOsm/kg. Urinalysis reveals calcium oxalate crystals. He denies ingestion of ethanol or methanol. Which medication is most appropriate antidotal therapy?
Answer choices
- AAtropine
- BProtamine sulfate
- CDimercaprol
- DN acetylcysteine
- EFomepizoleCorrect answer
- FEthanol
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