If there is a loss of O2 during treatment that can be fixed in 15 minutes, what action should be taken?

In the context of undersea rescue and hyperbaric oxygen therapy, maintaining depth until the repair is completed is crucial when faced with a temporary loss of oxygen supply. This approach is based on the principles of managing the patient's safety and ensuring they remain in a stable environment that minimizes the risk of decompression sickness or other adverse effects.

By maintaining depth, you are ensuring that the ambient pressure keeps the dissolved gases in the body, particularly nitrogen, at safe levels. An increase in pressure outside the chamber can prevent the onset of bubbles that may form due to changes in the gas laws as you ascend. Resuming treatment immediately, increasing chamber pressure or evacuating the chamber could introduce risks associated with sudden pressure changes, which might worsen the patient's condition or lead to other complications.

Therefore, maintaining depth while addressing the oxygen issue ensures that the environment remains controlled and safe until the repair is addressed, allowing for a smoother transition back to treatment.