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On Sun, 8 May 1994, Dan Nafe wrote: > Has anyone else ever noticed that when you get 'narced' reeeeeaaaal baaaaad > (ie: deep air 200++, hard working dive...), then ascend to even as shallow > as 100 feet, the narcosis is maintained? YES! This is what I mean when I refer to "residual narcosis", and it's quite common after dives like you describe. After reeaaal REEEEAAAAAAALL BAAAAAD narcosis (i.e., repeated exposures to air at 300++ feet), this residual narcosis can last for days, and subtle symptoms may last for months. Makes one woder what sorts of permanent damage narcosis might cause. > > We are told that as soon as the PpN2 is reduced the narcosis should go > away, but I've noticed that it doesn't always. > I was told lots of stuff in "basic training", which I no longer believe. This, I think, is one of the basic problems with entry-level SCUBA courses - too much misinformation used to "simplify" explanations of what's REALLY going on. Aloha, Rich
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