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Free diving to extreme depth. It can be avoided by limiting free diving depth to capacity of lungs to compensate, [35] and by training exercises to increase compliance of chest cavity. [citation needed] Rupture or supply pressure failure of a surface supply hose with simultaneous failure of the non-return valve. [35]
Scuba diving fatalities – Deaths occurring while scuba diving or as a consequence of scuba diving; Stand-by diver – A member of a dive team who is ready to assist or rescue the working diver; Underwater diving emergencies – Situations that endanger the life or health of a diver; Underwater environment – Aquatic or submarine environment
Like many other classes of emergency, diving emergencies can often be prevented from developing further by appropriate action at an early stage, and by having the appropriate skills and equipment. Professional diving teams are required to have emergence plans in place, and recreational divers are also expected to do so, to the extent ...
Providing emergency gas to a diver who has run out is the highest priority after finding the diver. Without breathing gas the diver will die in minutes. Running out of gas is a major contributor to diving accidents. Many scuba accidents start in some other way and culminate in running out of gas.
These conditions present similar symptoms and require the same initial first aid. Scuba divers are trained to ascend slowly from depth to avoid DCI. Although the incidence is relatively rare, the consequences can be serious and potentially fatal, especially if untreated. [1]
The next stage of the cascade/sequence is an incapacitating injury, which prevents the diver from further efforts to control the incident, most commonly asphyxia, followed by the official cause of death as the final stage. In freediving and scuba diving this is usually found to be drowning. [103]
The procedures vary depending on whether the diver is using scuba or surface supplied equipment. Scuba divers control their own descent and ascent rate, while surface supplied divers may control their own ascents and descents, or be lowered and lifted by the surface team, either by their umbilical, or on a diving stage, or in a diving bell.
Alabama National Guard divers performing a controlled ascent during a training exercise. An emergency ascent is an ascent to the surface by a diver in an emergency. More specifically, it refers to any of several procedures for reaching the surface in the event of an out-of-gas emergency, generally while scuba diving.