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Ammonium nitrate cold pack ingestion.

K R Challoner1, M M McCarron

  • 1Department of Emergency Medicine, Los Angeles County/University of Southern California Medical Center 90033.

The Journal of Emergency Medicine
|July 1, 1988
PubMed
Summary
This summary is machine-generated.

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Disposable ammonium nitrate cold packs can be harmful if ingested. While acute ingestion in suicidal attempts did not cause severe toxicity, it can lead to gastritis and methemoglobinemia.

Area of Science:

  • Emergency Medicine
  • Toxicology
  • Clinical Chemistry

Background:

  • Disposable ammonium nitrate cold packs are common in emergency departments.
  • Ammonium nitrate ingestion can cause gastritis, acidosis, and nitrite toxicity.

Observation:

  • Five patients ingested 64-234g of ammonium nitrate from cold packs.
  • One patient attempted ingestion.
  • Patients were confused or suicidal.

Findings:

  • No severe toxicity was observed in acute ingestion cases.
  • Three patients had gastritis symptoms.
  • Three patients showed slight methemoglobinemia.
  • Two patients experienced mild hypotension.

Implications:

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  • Acute ammonium nitrate ingestion from cold packs may be less toxic than chronic exposure.
  • Prompt gastric removal can mitigate toxicity.
  • Patients without renal or intestinal dysfunction may tolerate higher doses.