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These are first aid oxygen administration at high concentration, which is seldom contraindicated, and generally recommended as a default option in diving accidents where there is any significant probability of hypoxia, [citation needed] and hyperbaric oxygen therapy (HBO), which is the definitive treatment for most incidences of decompression ...
The presence of a fever or a history of seizure is a relative contraindication to hyperbaric oxygen treatment. [92] The schedules used for treatment of decompression illness allow for periods of breathing air rather than 100% oxygen (air breaks) to reduce the chance of seizure or lung damage. The U.S. Navy uses treatment tables based on periods ...
The blood volume of seals is proportionately larger than terrestrial mammals, and the haemoglobin content is very high. This makes the oxygen-carrying capacity and the blood oxygen store very high, but it is not necessarily available at all times. Aortic haemoglobin concentration has been observed to rise in diving Weddell seals.
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He told police that something bit his leg, but he was unable to see what happened.
It's "extremely unusual" for two bite incidents to occur in one afternoon, Crawford said during an evening news briefing. A 45-year-old woman was injured in the first "reported shark incident."
When attacking pinnipeds, the shark surfaces quickly and attacks violently. In contrast, attacks on humans are slower and less violent: the shark charges at a normal pace, bites, and swims off. Great white sharks have efficient eyesight and color vision; the bite is not predatory, but rather for identification of an unfamiliar object. [75]
Steven Reinhardt, 60, of Palm Beach Gardens grins as he shares his shark attack survival story. He sustained a shark bite while on a morning swim on Nov. 5, 2023, near Lost Tree Village in Juno Beach.