Warning signs and symptoms typically precede an oxygen convulsion. True or False?

An oxygen convulsion, which can occur when a diver is exposed to partial pressures of oxygen greater than the safe limits, often happens without warning. It’s important to understand that many divers may not experience any recognizable signs or symptoms prior to having a convulsion. While some divers might report feeling fatigued or light-headed under high oxygen conditions, these indicators are not universally present and may not serve as reliable warnings.

Oxygen toxicity affects individuals differently, and experienced divers may also find themselves unexpectedly impacted, regardless of their awareness or previous encounters with elevated oxygen levels. The risk associated with exposure to high pressures of oxygen highlights the importance of adhering strictly to safe diving practices and monitoring the depth and duration of dives on enriched air blends to mitigate the risk of convulsions occurring suddenly and without prior symptoms.

This understanding emphasizes the critical nature of safety protocols and the need to stay informed about the effects of oxygen at varying depths.