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Date: Tue, 08 Feb 2000 14:48:17 +0800
From: Brenda Boo <booss@si*.co*.sg*>
To: Steve Schultz <se2schul@un*.ma*.uw*.ca*>
CC: techdiver@aquanaut.com
Subject: Re: PFO test question and comment
Hi all,

  Steve suggested that I posted to the list.  Can someone explain what is
PFO?  Is this a necessary for divers?  And what kind of insurance we should be
insuring ourselves if we are thinking of diving frequently?

  thanks, brenda.

Steve Schultz wrote:

> I had a bad experience recently when I went to get tested for PFO.  They
> tested me for the wrong thing - PDA, and then agreed to redo the test.
> This was due to an incompetant doctor and lab technician that didn't
> really know what a PFO was.
>
> I went back recently and told them the exact procedure that they should
> have followed which was inject saline that has been shaken up in air
> several times into a vein.  It is rapidly injected, first while breathing
> normally.  the procedure is then repeated six times, while exhaling hard
> agains a closed glottis.  this raises the pressure in the right atrium and
> will cause a jet of bubbles to go from right to left across a PFO.
>
> THEY DIDN"T TO THIS
>
> What they did when repeating the test did not involve the injection of any
> saline.  They performed the 2D echo on me while I held my breath, but
> pushed or contracted like taking a crap.  She said that doing this would
> raise the pressure in the attrium and detect a PFO.
>
> My question is this:  Is that enough of a test, or do I have to do the
> procedure that I outlined above??
>
> BTW, anyone who wants a PFO test done with the saline as I described above
> should NOT ask for a PFO test, but rather a Bubble study, a saline
> injection study, or a contrast study.  Make sure your doctor and
> technician know someting about what is going on.
>
> Steve
>
> --
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--
DiverSaurus Team (Nov '99)
Diventures Scuba
http://web.singnet.com.sg/~diven/


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