What should a diver do if they find themselves lower on gas than desired and surfacing isn’t the optimal option?

When a diver finds themselves lower on gas than desired and surfacing is not an optimal option, slowing down the ascent rate is crucial. This action helps to mitigate the risk of decompression sickness, as a rapid ascent can cause nitrogen bubbles to form in the bloodstream. By ascending slowly, the diver gives their body more time to off-gas the nitrogen absorbed during the dive, reducing the risk of decompression illness.

Additionally, adjusting the ascent rate allows the diver to better assess their situation and make more informed decisions about how to proceed. It is important to remain calm and maintain control while monitoring the gas supply, ensuring that the diver can either reach safety or complete appropriate safety precautions, like making a safety stop if necessary. Emphasizing a controlled ascent rate enhances safety and provides the diver with time to address the evolving situation effectively.