Complete your ADCI Dive Supervisor Certification. Review with flashcards and multiple-choice questions, each question includes hints and detailed explanations to ensure understanding and success on your test.

Multiple Choice

What are common signs of nitrogen narcosis and how should they be addressed?

Nitrogen narcosis is a CNS effect caused by increased nitrogen pressure underwater. The most telling signs are cognitive and mood-related: impaired judgment, confusion, and sometimes euphoria or a sense of abnormal detachment. Because narcosis is tied to depth, the most reliable way to address it is to ascend to a shallower depth, where the nitrogen partial pressure decreases and symptoms typically ease. After ascending, reassess the dive plan and proceed only if function is normal and the dive remains safe. Visual disturbances can occur with various dive issues, but they are not the primary or sole signs of nitrogen narcosis. Increased risk from oxygen toxicity and the use of hyperbaric oxygen are associated with different problems (like oxygen toxicity or decompression sickness) and aren’t the appropriate treatment for narcosis. Joint pain is not a typical sign of nitrogen narcosis. If symptoms persist after ascending or are severe, follow standard safety procedures and seek medical evaluation.

Nitrogen narcosis is a CNS effect caused by increased nitrogen pressure underwater. The most telling signs are cognitive and mood-related: impaired judgment, confusion, and sometimes euphoria or a sense of abnormal detachment. Because narcosis is tied to depth, the most reliable way to address it is to ascend to a shallower depth, where the nitrogen partial pressure decreases and symptoms typically ease. After ascending, reassess the dive plan and proceed only if function is normal and the dive remains safe.

Visual disturbances can occur with various dive issues, but they are not the primary or sole signs of nitrogen narcosis. Increased risk from oxygen toxicity and the use of hyperbaric oxygen are associated with different problems (like oxygen toxicity or decompression sickness) and aren’t the appropriate treatment for narcosis. Joint pain is not a typical sign of nitrogen narcosis. If symptoms persist after ascending or are severe, follow standard safety procedures and seek medical evaluation.