What is a common sign of potential nitrogen narcosis?

Nitrogen narcosis, often referred to as "the rapture of the deep," is a condition that can affect divers at depth due to the effects of nitrogen at increased pressures. A key sign of this condition is impairment of judgment or confusion. As a diver descends deeper, the partial pressure of nitrogen increases, leading to symptoms that can mimic intoxication.

This impairment can manifest as slowed cognitive function, poor decision-making abilities, and an altered perception of the environment. Divers experiencing nitrogen narcosis might underestimate risks, take silly chances, or behave in ways that are out of character. Recognizing this sign is crucial for ensuring safety underwater, as it can lead to dangerous situations if a diver is unable to think clearly.

The other options do not correctly identify symptoms associated with nitrogen narcosis. For example, increased visual clarity and improved buoyancy control are not typical effects of this condition; instead, divers might actually experience difficulty in visual perception and coordination. Enhanced physical strength is also misleading, as nitrogen narcosis generally impairs physical abilities rather than enhancing them. Understanding these characteristics helps divers recognize and address nitrogen narcosis effectively.