Rebreather World - View Single Post - Off gassing at 4 vs 6m (from the complacency thread)

Sutty · 23rd March 2008, 00:32

Quote: (Originally Posted by Mike)

Now lets go instantly from 10m depth to the surface (this is just for easy maths), assuming we were breathing O2 at 10m and will continue breathing O2 at the surface.

In my simple model, the inert gas pressure in the tissues has not changed, it is still X. The pressure of dissolved gas in the blood (as it tracks absolute pressure) is now HALF Y.

Mike

Why would the gas pressure in the blood have halved? where would the gas have gone? Blood is just another tissue - it just happens to be the one that equilibrates with alveolar gas. It has to off-gas to reduce inert gas pressure!

23rd March 2008, 00:32	#8 (permalink)
Sutty Classic Kiss diver Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: Jun 2005 Location: Glossop, Derbyshire, UK Posts: 781	Re: Off gassing at 4 vs 6m (from the complacency thread) Quote: (Originally Posted by Mike) Now lets go instantly from 10m depth to the surface (this is just for easy maths), assuming we were breathing O2 at 10m and will continue breathing O2 at the surface. In my simple model, the inert gas pressure in the tissues has not changed, it is still X. The pressure of dissolved gas in the blood (as it tracks absolute pressure) is now HALF Y. Mike Why would the gas pressure in the blood have halved? where would the gas have gone? Blood is just another tissue - it just happens to be the one that equilibrates with alveolar gas. It has to off-gas to reduce inert gas pressure! __________________ Never forget that life is a finite resource.
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