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To: TECHDIVER <techdiver@opal.com>
Subject: FWD: Re: Risks of CO2 PP when air diving?
From: Lance Lollini <Lance.Lollini@sy*.co*>
Date: 25 Jul 1994 13:21:37 -0800 (PST)
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JUST A THOUGHT, HEMOGLOBIN PREFERENTIALLY BINDS CO RATHER 
THAN O2 AND IT BINDS IT TIGHTLY THUS TYING UP THE Hb.  AT 
LEAST THAT IS WHAT I WAS TAUGHT A FEW YEARS BACK.  
THEREFORE, IT IS NOT JUST A SIMPLE MATTER OF DIFFUSION IN 
ACCORDANCE WITH PARTIAL PRESSURES.
LANCE

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Subject: Re: Risks of CO2 PP when air diving?
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Scott,

You have hit the nail on the head, the binding with hemoglobin is
competitive between oxgyen and carbon monoxide, and thus as long
as the relationship between the partial pressure of monoxide and
oxide remains constant, the amount of hemoglobin bound with monoxide
will remain constant (at least, according to everything I know, and
Bill Hamilton has also been heard to make this same point about
monoxide).

John
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