Re: Nitrox cert update

In article <fh2fkt$n5h$02$1@xxxxxxxxxxxxxxxxx>,
Matthias Voss <Mat.voss@xxxxxxxxxxx> wrote:
Morten Reistad wrote:

You will drown in your own bodily fluids. The high O2 makes a
slime on all muchus membranes, and this brings bodily fluids
out into lungs, mouth, sinuses, ears. This reduces the functionality
of the lungs, and eventually you will drown in our own bodily
liquids.

Where you got that myth from?


This is what happens on a sustained, high ppO2 if you don't tox.

When your OTU clock tick up in the high thousands you will be in that
mode. You can get confirmation for this from any nurse or M.D. working
in lung units. Terminal patients need high O2 levels not to die, but
that same O2 will kill the patients if given for a sufficiently long
time.

Well, that's a bit distant from exposures in diving. Look at
the time span and exposure conditions needed to cause
permanent lung damage.

Still, PPO2 of 1.6 for 20ish minutes (I haven't gotten the tables here)
is enough to lower the effective gas exchange capacity of the lungs by
a third or so; because of this slime.

That is the reason for gas breaks.

It is very real. This white, gooey slime is unique for O2 exposure, and
when you are bothered by it, it is a little too late if you are executing a
deco profile.

On a long deco, the spiral from there to a bad-trip in lung inflammation
goes pretty fast. Been there, done that. I still wonder what the GUE folks
do with those high O2 exposures. Everyone else around here (fjords) have
backed down in O2 exposure; purely from experience.

All of this is for an hour of O2/Nitrox decompression. Fjords are
deep, dark and scary; but we tend to enjoy that.

Our docs say that the convulsion can brake yr backbone, and
that's it.


You can also swallow your tongue, and then choke.


The nitrogen may also slow the onset of O2 convulsions, but there
haven't really been lots of data on this.

That is why oxtox is said to come earlier with Helium mixes,
and thus the reduction of ppO2 in mix dives.


Not just for that. Deco works better if you haven't had too
high O2 exposure at the bottom.

That self-understood. ( At least I hope so)

And you should take a longish gas break as soon as you observe any
non-trivial amount of this white slime; e.g. cough or sneeze it etc.

-- mrr
.

Relevant Pages

  • Re: Nitrox cert update
    ... is enough to lower the effective gas exchange capacity of the lungs by ... a third or so; because of this slime. ... backed down in O2 exposure; ...
    (rec.scuba)
  • Re: Nitrox cert update
    ... slime on all muchus membranes, and this brings bodily fluids out into lungs, mouth, sinuses, ears. ... Look at the time span and exposure conditions needed to cause permanent lung damage. ...
    (rec.scuba)
  • Re: Nitrox cert update
    ... high PP or O2 that could eventually kill you also... ... You will drown in your own bodily fluids. ... out into lungs, mouth, sinuses, ears. ... Terminal patients need high O2 levels not to die, ...
    (rec.scuba)
  • Re: Nitrox cert update
    ... convulse until removed or will you die eventually from it? ... You will drown in your own bodily fluids. ... slime on all muchus membranes, and this brings bodily fluids out into lungs, mouth, sinuses, ears. ...
    (rec.scuba)
  • Scarring of the Lungs From Si Glass Microspheres
    ... I'm guessing they scar the lungs with enough exposure. ...
    (sci.materials)