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> > > >>that Nitrox should be banned because we'd all end up toxing, and if we DID > >>get bent instead of toxed, we'd have used-up all our UPTDs and OTUs, and > >>couldn't be safely treated in a chamber. > > This was also the case the Cayman Divers' Association was using in order to discourage Nitrox use in those dreaded early days of the devil gas. At the time they said they could not treat a diver in the chamber if they had been breathing nitrox. Their argument was pretty weak. If you calculated the OTUs for a recreational nitrox dive, and for the same dive on air, the number of OTUs increase was small in relation to the number you could tolerate for hyperbaric treatment. At the time I thought it was interesting that the number of OTUs from first aid treatment including 100% oxygen was never considered as a barrier to chamber treatment, even though the amount acquired from breathing nitrox on the dive would have precluded treatment. It is also interesting to note that all of the nitrox nay-sayers have done an about face, and the concern about additional OTUs and hyperbaric treatment evaporated. It was all politics. It would be unfortunate if some physicians still believe that early, inaccurate information. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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