Oxygen toxicity

Oxygen toxicity

  • Acute neurotoxicity as a result of breathing oxygen at pressure exceeding 1.6 atm during diving 
    • Threshold for oxygen toxicity is higher during resting, dry exposure in hyperbaric oxygen therapy
  • Presentation can be similar to nitrogen narcosis, with behavior changes and disorientation; auditory and visual hallucinations are also frequently reported
  • Unlike with nitrogen narcosis, may present with nausea, facial muscle twitching, convulsions, and loss of consciousness
  • Differentiate on basis of symptoms, particularly the presence of convulsions that terminate upon cessation of oxygen inhalation
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