Diving and oxygen - PubMed (original) (raw)

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Diving and oxygen

P Wilmshurst. BMJ. 1998.

No abstract available

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A dive to 30 m for 20 minutes puts the scuba diver at risk of nitrogen narcosis and decompression illness. The elephant seal can dive to 1 km for 1 hour without risk of either condition

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Effect of depth on partial pressures of nitrogen and oxygen

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Ama divers do repeated breath hold dives with little time in between for recovery

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Effect of hyperventilation on breath holding

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Bubbles formed on decompression are visible in tear fluid beneath contact lens

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Amateur scuba divers

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Oxygen rebreathers allow divers to breathe 100% oxygen but carbon dioxide accumulation can be a problem

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Professional surface diver with umbilical gas supply, voice communication to helmet, and heating to suit

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Diving induced pulmonary oedema (left) which resolved with no treatment after diver was removed from water (right)

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