What should be done if oxygen toxicity signs are observed?

When signs of oxygen toxicity are observed in a patient undergoing hyperbaric oxygen therapy, the appropriate action is to remove the patient from the treatment environment. Oxygen toxicity can occur when a patient is exposed to high levels of oxygen for an extended period, leading to potential lung damage, central nervous system effects, and other serious complications.

Removing the patient from the hyperbaric chamber halts the exposure to high oxygen levels, thereby preventing further toxicity. This action prioritizes the safety and well-being of the patient. Other options may not adequately address the immediate risk associated with oxygen toxicity. For instance, increasing oxygen flow could exacerbate the toxicity risk, while continuing the current gas mixture would not mitigate the observed symptoms.

Consulting the Undersea Medical Officer (UMO) may be necessary for guidance on follow-up treatment or assessments, but the immediate step of removing the patient is crucial in response to signs of toxicity.