Isopropanol Poisoning

Isopropanol Poisoning is a topic covered in the 5-Minute Emergency Consult.

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Basics

Description

  • CNS depressant effect of isopropanol is 2 to 3 times as potent as that of ethanol.
  • Many products that contain isopropanol also contain methanol, ethylene glycol, and ethanol.
  • Rapidly absorbed following oral ingestion
  • Ketogenic, but does not cause significant acidosis
  • Metabolized by alcohol dehydrogenase to acetone (a CNS depressant):
    • Concomitant ethanol ingestion doubles half-life of isopropanol but not that of acetone.
    • Acetone eliminated by lung and kidney
  • Half-life:
    • Isopropanol: 3–16 hr
    • Acetone: 7.5–26 hr

Etiology

  • Isopropanol (isopropyl alcohol): Clear, colorless, volatile liquid with faint odor of acetone and bitter taste
  • Available as 70% rubbing alcohol solution:
    • May contain blue dye that was added to inhibit its abuse (“blue heaven”)
  • Found in:
    • Various toiletries
    • Disinfectants
    • Window-cleaning solutions
    • Paint remover
    • Solvents
    • Jewelry cleaners
    • Detergents
    • Antifreeze
    • Hand sanitizers
  • Typical adult patient: Chronic alcoholic who has been on drinking binge and recently depleted his or her ethanol supply
  • Dermal and rectal administration can cause systemic toxicity.

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Citation

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TY - ELEC T1 - Isopropanol Poisoning ID - 307543 Y1 - 2016 PB - 5-Minute Emergency Consult UR - https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307543/all/Isopropanol_Poisoning ER -