Biochemical response to the toxic lung damage induced by inhalation of methylene chloride was studied. Significant increases in protein, hexose, sialic acid, lactate dehydrogenase, acid and alkaline phosphatase content were observed in the cell-free lavage effluents from lungs of exposed rats compared to the control animals. This was interpreted as increased cell damage accompanied by enhanced pulmonary secretions, perhaps of glycoproteins and mucins, as a result of inhalation toxicity.
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Why so blue? A novel presentation of methaemoglobinaemia secondary to an inhaled occupational nitric acid exposure.
Clin Toxicol (Phila)
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Department of Toxicology and Emergency Medicine, Fiona Stanley Hospital, Perth, Australia.
Introduction: Nitric and hydrofluoric acids are commonly used in the commercial cleaning industry. We are unaware of reports of nitric acid inhalation forming methaemoglobin. Additionally, methaemoglobinaemia and treatment with methylthioninium chloride (methylene blue) may precipitate clinical uncertainty due to similar wavelengths of absorbance in pulse oximetry.
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Article Synopsis
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April 2024
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Nitrite has high toxicity and is commonly found in food poisoning. Poisoned patients may experience cyanosis of the skin and lips, nausea, vomiting, and difficulty breathing or coma may occur in severe cases. Four cases of nitrite poisoning patients who were transferred from primary hospitals to the Third Affiliated Hospital of Gansu University of Chinese Medicine, the First People's Hospital of Baiyin were reported.
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