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Is there research & documentation showing red blood cells becoming rigid
due to high ppn2's?  I would be interested in reading it. Thanks Rick

----------
> From: Ben Greenhouse <b.greenhouse@ut*.ca*>
> To: techdiver@aquanaut.com
> Subject: Re: Physiology
> Date: Monday, October 20, 1997 11:09 AM
> 
> Dave:
> 
>     I'm not too sure of any longterm problems, but I would imagine that
> an immediate problem from
> red blood cell rigidity is hypertension.  The increased work your heart
> has to
> do in this situation may increase nitrogen uptake.  As well, the reduced
> blood
> flow in your circulatory system due to the hypertension may inhibit
> off-gassing from poorly circulated regions.  Anyone agree/disagree?
> 
> Dave Nunes wrote:
> 
> > Bill Mee wrote:
> > >
> > > From a strictly physiological viewpoint you will definitely feel
> less
> > > tired and more "energetic" post dive following a lengthy exposure in
> the
> > > 100' range after breathing a gas mix where helium replaces part of
> the
> > > nitrogen. We know that red blood cells become rigid at high ppn2s
> and
> > > loose some of their hemodynamic characteristics which benefit plug
> > > capillary flow.  On the other hand helium is a "fast" highly mobile
> gas
> >
> > Bill,
> >
> > Please forgive my ignorance but, what are the
> (physiological??/Medical??)
> > side effects of red blood cells becoming rigid due to high ppn2's, can
> this
> > cause any problems with normal everyday health (in the long or short
> term),
> > is it permanent damage? What does this do to one's body?
> >
> > Ciao
> >
> > Dave Nunes
> > Infoview Client systems
> >
> > --
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> 
> 
> 
> 
> 
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