What should happen after the first CNS O2 toxicity hit that is not a convulsion?

After the first CNS oxygen toxicity hit that is not a convulsion, the correct course of action is to remove the patient from oxygen therapy and wait for a period of time, typically around 15 minutes, after the symptoms have subsided. This approach allows the body to safely metabolize the excess oxygen and reduces the risk of further toxicity or complications.

In managing CNS oxygen toxicity, continuous exposure to high levels of oxygen can exacerbate symptoms or lead to further convulsions. Therefore, allowing a recovery period without oxygen is crucial. This waiting period helps in reducing partial pressures of oxygen in the body and enables a safer return to oxygen therapy if needed afterward.

This strategy is consistent with standard practices in hyperbaric medicine, where the focus is on minimizing the risk of oxygen toxicity while ensuring the patient's safety and health.