Intoxication following the inhalation of hydrogen fluoride.

The prognosis for fluoride inhalation is poor, owing to the extreme toxicity of the substance and lack of satisfactory treatment. In the case of massive inhalation, the slow, progressive destruction of the bronchial mucosa and lung tissue will be lethal. Irrespective of the dose, a transient restriction in renal function or acute renal failure will occur. The transient increase in transaminase seems to be caused by several factors. Our cases show that the evaluation of fluoride levels in biological material is difficult, as dietary intake, e.g., in drinking water, may complicate acute or chronic occupational exposure.