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Acute potassium dichromate poisoning: a toxicokinetic case study.
Z Kołaciński1, P Kostrzewski, S Kruszewska
1Nofer Institute of Occupational Medicine, Clinic of Acute Poisonings, Lódź, Poland. 281ko@imp.loqz.pl
Journal of Toxicology. Clinical Toxicology
|December 10, 1999
Summary
This case report details a patient who ingested potassium dichromate. Hemodialysis and calcium-EDTA therapy were used to manage chromium toxicity, with limited success in overall elimination.
Area of Science:
- Toxicology
- Pharmacokinetics
- Clinical Chemistry
Background:
- Potassium dichromate ingestion can lead to severe toxicity.
- Understanding chromium pharmacokinetics is crucial for managing poisoning.
- This case examines the elimination of chromium after acute ingestion.
Observation:
- A patient ingested a significant dose of potassium dichromate.
- Hemodialysis was initiated 7 hours post-ingestion.
- Chromium levels in serum, erythrocytes, and dialysate were monitored.
Findings:
- Total chromium elimination via hemodialysis and urine was minimal (0.16%).
- Urinary chromium elimination followed a one-compartment model with a half-life of ~71 hours.
- Serum chromium elimination followed a two-compartment model with half-lives of ~3 hours and ~50 hours.
- Calcium-EDTA therapy increased chromium elimination in dialysate but not in serum or erythrocytes.
Implications:
- Standard hemodialysis and calcium-EDTA therapy show limited efficacy in accelerating chromium elimination after acute poisoning.
- Further research is needed to explore more effective methods for managing chromium toxicity.
- This case highlights the challenges in treating severe heavy metal poisoning.