Dive Into Success: Master the SDI Open Water Scuba Diver Exam 2025 – Make Waves with Confidence!

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How does depth affect nitrogen absorption in the body?

Shallower dives increase nitrogen absorption

Deeper dives reduce nitrogen absorption

Deeper dives lead to increased nitrogen absorption

As a diver descends to greater depths, the pressure surrounding the body increases, which in turn affects how gases are absorbed by the body, specifically nitrogen. According to Henry's Law, the amount of gas dissolved in a liquid is proportional to the pressure of that gas above the liquid. As pressure increases at deeper depths, a greater amount of nitrogen from the breathing gas becomes dissolved in the tissues of the body. This higher absorption level can lead to an increased risk of nitrogen narcosis and decompression sickness if divers ascend too quickly or do not allow sufficient time for the nitrogen to be safely eliminated from the body during ascent.

Understanding this relationship is critical for safe diving practices, as it underpins the necessity of following proper ascent rates and decompression procedures to mitigate the risks associated with nitrogen buildup.

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Nitrogen absorption is constant at any depth

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