Enriched Air Nitrox (SC-EAN) Practice Test

Experiencing symptoms of oxygen toxicity is a serious situation that requires immediate action to minimize the risk of severe complications. Ascending to a shallower depth reduces the partial pressure of oxygen around the diver, which can help alleviate the symptoms and physiological effects associated with oxygen toxicity.

When the partial pressure of oxygen in a diver's environment becomes too high, it can lead to various symptoms, including visual disturbances, muscle twitching, or even convulsions. These symptoms arise because higher pressures of oxygen can lead to toxic reactions in the body's tissues, particularly in the nervous system.

Seeking assistance is also vital because other trained divers or support personnel can provide aid and monitor the diver's condition more effectively. Acting immediately in ascending and seeking help ensures that the diver's safety is prioritized, allowing for proper evaluation and treatment if needed.

Continuing the dive, administering oxygen, or ignoring the symptoms complicate the situation and increase the risk of severe toxicity or further injury. Proper protocol dictates that any signs of distress, particularly those related to oxygen toxicity, must be addressed promptly to ensure the diver's safety.