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Date: Sun, 22 Jul 2001 20:54:18 -0400
To: Wendell Grogan <wgrogan@dc*.ne*>
From: Capt JT <captjt@mi*.co*>
Subject: Re: something just isn't adding up
Cc: techdiver@aquanaut.com, vbtech@ci*.co*
Hi Wendell
Just like to say thanks and let everyone know that you have been helping 
the diver and myself with advice in private and by phone. We plan to do as 
you say and eliminate all possibilities. Then it can only be what is left....

JT
I like you in professor mode myself....

     At 06:46 AM 7/19/01 -0400, Wendell Grogan wrote:
>Easy answer: no.
>CNS ox-tox is a totally different problem than pulmonary toxicity.  You
>can accumulate lung injury over time if you have repeated exposures
>without sufficient time for recovery in between.  CNS toxicity on the
>other hand is not well understood in terms of exactly how it happens,
>all we know is what situations increase your risks of it happening.
>It is a problem of the interaction of brain chemistry and/or circulation
>and high oxygen concentration (gas tension).  What ever the trigger is,
>it is more of an immediate response to the current oxygen concentration,
>not related to the cumulative exposure over time.  That's not to say its
>always instantaneous, rather, its an active process over a period of
>minutes.
>(I will now exit Professor mode)
>Wendell
>
>
>Jsuw@ao*.co* wrote:
> >
> > JT has mentioned that there was a 24 hour surface interval before the
> > dive
> > where the seizure occurred.  Even with that amount of time, I can't
> > help but
> > wonder about the possibility that repetitvve high PO2 exposures may
> > have
> > contributed.
> >
> > Jan
>--
>Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
>Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.

"You can't learn to dive on the net, sooner or later you have to get in the 
water"
Your Guide to Great Wreck Diving along the East Coast & more
  Web Site  http://www.capt-jt.com/
Email     captjt@mi*.co*


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