What is a potential consequence of exceeding the recommended limits of oxygen partial pressure while diving with EANx?

Exceeding the recommended limits of oxygen partial pressure while diving with Enriched Air Nitrox (EANx) can lead to hyperoxia, which is an excess of oxygen in the tissues and organs. This condition can result in toxic effects on the central nervous system, manifesting as symptoms such as visual changes, muscle twitching, seizures, and in severe cases, loss of consciousness. The risk of hyperoxia increases with the depth of the dive since the partial pressure of oxygen rises alongside the increase in overall pressure underwater. It is essential for divers using EANx to understand the limits of oxygen exposure to avoid these dangerous consequences and ensure a safe diving experience.

Dehydration refers to the loss of body fluids and is not directly caused by exceeding oxygen limits in diving. Reduced dive time can be a practical consideration when diving with any gas mixture, but it is a precautionary measure rather than a direct consequence of elevated oxygen levels. Hypothermia is a condition related to low body temperature due to cold water exposure and is not linked to the partial pressure of oxygen.