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  • Title: Carbon monoxide poisoning and pulmonary injury from the mixture of formic and sulfuric acids.
    Author: Schneir A, Rentmeester L.
    Journal: Clin Toxicol (Phila); 2016 Jun; 54(5):450-3. PubMed ID: 26998888.
    Abstract:
    CONTEXT: The inhalation of carbon monoxide produced by the incomplete combustion of carbon remains a popular method of suicide. A much less common method of producing carbon monoxide for suicide is by mixing formic and sulfuric acids. CASE DETAILS: We describe a patient who attempted suicide by mixing formic and sulfuric acids. He presented with a depressed level of consciousness, chemical burns of his airway and skin, and respiratory distress. He was found to have a metabolic acidosis, a carboxyhemoglobin of 36.8%, hyperkalemia, and rhabdomyolysis. His hospital course was notable for copious pulmonary secretions and hypoxia, but he ultimately recovered with supportive care. DISCUSSION: The case highlights the potential toxicity, particularly from inhaled carbon monoxide and formic acid, with this method of suicide.
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