During an independent emergency ascent, you should stop periodically and attempt to inhale through your regulator because doing so reduces the risk of decompression sickness.
An emergency ascent is an unfastened ascent wherein the diver propels him/herself to the surface by using swimming at both negative or approximately neutral buoyancy. Exhaling ascent is an ascent wherein the diver constantly exhales at a controlled fee for the duration of the ascent.
They should ascend as a buddy pair at a secure emergency ascent fee to fifteen toes (5 m), while their safety forestalls, and go back to the surface together. As soon as there, they must establish effective buoyancy with a pre-agreed reserve of gas.
If the diver fails to exhale sufficiently, the expanding air might also rupture lung tissue (pulmonary barotrauma) and release gas bubbles into the arteries (arterial gasoline embolism) or somewhere else in the body. these bubbles can restrict blood float and motive harm inside the brain and different frame tissues.
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