When would you need to deliver 100% oxygen in a diving scenario?

Delivering 100% oxygen is particularly important in the case of mild decompression sickness, as this therapy helps to reduce nitrogen bubbles in the bloodstream and tissues more effectively. When a diver experiences mild decompression sickness, the introduction of pure oxygen enhances the elimination of nitrogen, which is crucial for proper recovery and reducing symptoms. This process aids in the faster absorption of nitrogen by the tissues, promoting a safer and more effective resolution of the condition.

While oxygen might also be beneficial in various other scenarios, it is primarily indicated for treating decompression sickness to improve gas exchange and accelerate healing. Other situations may not warrant a specific oxygen delivery approach as outlined in this context.