What is one effective way to establish adequate protection against DCS?

Establishing adequate protection against Decompression Sickness (DCS) is crucial for maintaining the health and safety of individuals exposed to varying altitude and pressure conditions. Cabin pressure and denitrogenation is effective because it helps to manage the levels of nitrogen in the body.

During ascent to higher altitudes, atmospheric pressure decreases, which can lead to nitrogen trapped in tissues being released too quickly, forming bubbles that cause DCS. By maintaining adequate cabin pressure, the partial pressure of gases in the cabin is regulated, reducing the likelihood of nitrogen coming out of solution in the bloodstream. Denitrogenation, which often occurs before a person ascends to high altitude, involves allowing the body to eliminate excess nitrogen while at lower pressure environments, further helping to prevent DCS.

Maintaining a controlled environment within the cabin, coupled with proper pre-flight preparation to ensure that the body is not saturated with nitrogen, is vital for effectively minimizing the risk of DCS. Thus, cabin pressure management and denitrogenation stand out as a key protective strategy compared to the other options.