What is a typical treatment response for nitrogen narcosis?

• A. Descend to deeper depth
• B. Ascend to a shallower depth
• C. Increase breathing gas flow
• D. Administer sedatives

Answer: (B)

Nitrogen narcosis comes from increased nitrogen partial pressure as you go deeper, which can narcotically affect brain function. The typical and effective response is to ascend to a shallower depth. As you reduce the ambient pressure and the partial pressure of nitrogen drops, the narcotic effects lessen, and symptoms usually improve within minutes after the ascent.

Descending deeper would make the narcosis worse, and increasing breathing gas flow doesn’t address the underlying issue of inert gas pressure. Administering sedatives could mask symptoms and create dangerous situations, since the diver’s alertness and ability to respond are critical. So, the fastest, safest way to reverse nitrogen narcosis is a controlled ascent to shallower depth.