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Acute lead arsenate poisoning.

G A Tallis1

  • 1Division of Clinical Chemistry, Institute of Medical and Veterinary Science, SA.

Australian and New Zealand Journal of Medicine
|December 1, 1989
PubMed
Summary

Acute lead arsenate poisoning requires immediate gastric lavage and chelation therapy. While lavage aids lead absorption, arsenic absorption is less affected, and dimercaprol

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Area of Science:

  • Toxicology
  • Environmental Health
  • Clinical Medicine

Background:

  • Lead arsenate is a toxic compound.
  • Acute poisoning cases require prompt medical intervention.

Observation:

  • Three cases of acute lead arsenate poisoning in South Australia are presented.
  • Clinical syndrome following lead arsenate ingestion is detailed.

Findings:

  • Immediate gastric lavage and chelation therapy with calcium EDTA and dimercaprol are recommended.
  • Early gastric lavage may reduce lead absorption.
  • Arsenic acid, formed in the stomach, is water-soluble, limiting lavage effectiveness for arsenic absorption.
  • Dimercaprol's efficacy in preventing arsenical neuropathy is debated.

Implications:

  • Prompt medical management is crucial for acute lead arsenate poisoning.
  • Understanding absorption dynamics informs treatment strategies.
  • Further research is needed on dimercaprol for arsenical neuropathy.

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