What is the recommended treatment for nitrogen narcosis?

The recommended treatment for nitrogen narcosis is to ascend to shallower depths. When divers experience nitrogen narcosis, commonly referred to as "rapture of the deep," it occurs due to the increased partial pressure of nitrogen at greater depths, leading to impairment of cognitive and motor functions. The effects are similar to alcohol intoxication, and the severity of symptoms can increase as a diver goes deeper.

Ascending to a shallower depth reduces the partial pressure of nitrogen, allowing the body to gradually eliminate the excess nitrogen and alleviating the symptoms of narcosis. This corrective action is generally swift and effective, making it the most appropriate response in situations of nitrogen narcosis.

While oxygen administration is beneficial for many dive-related issues like decompression sickness, it does not directly treat the effects of nitrogen narcosis. Immediate recompression is typically reserved for treating decompression sickness and not for narcosis. Finally, it is incorrect to say that there is no treatment; simply rising to shallower depths is an effective and recommended method to mitigate the impacts of nitrogen narcosis.