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High Altitude and Central Apneas
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archangle Offline
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Machine: ResMed S9 AutoSet
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Post: #21
RE: High Altitude and Central Apneas
(08-10-2015 05:36 PM)eseedhouse Wrote:  But CO2 is a lot more poisonous than O2, and I prefer if I have to breath something other than air that it be oxygen. The CO2 in the bloodstream is generally the result of oxidation of organic compounds so more O2 in the blood also increases CO2 in the bloodstream indirectly.

You haven't confused Carbon Monoxide with Carbon Dioxide, have you?

CO2's not really particularly poisonous. It's about 0.4% in normal air, and it's about 4% in our exhaled breath.

Generally, in any rebreathing situation, it's oxygen deprivation that gets you, not excess CO2.

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08-11-2015 08:07 PM
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quiescence at last Offline

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Machine: REMstar System One with Autoflex
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Post: #22
RE: High Altitude and Central Apneas
(08-11-2015 08:07 PM)archangle Wrote:  
(08-10-2015 05:36 PM)eseedhouse Wrote:  But CO2 is a lot more poisonous than O2, and I prefer if I have to breath something other than air that it be oxygen. The CO2 in the bloodstream is generally the result of oxidation of organic compounds so more O2 in the blood also increases CO2 in the bloodstream indirectly.

You haven't confused Carbon Monoxide with Carbon Dioxide, have you?

CO2's not really particularly poisonous. It's about 0.4% in normal air, and it's about 4% in our exhaled breath.

Generally, in any rebreathing situation, it's oxygen deprivation that gets you, not excess CO2.

I give point to ed on this, seems that CO2 buildup can cause enormous problems. It may not act as a poison, but sure can make the system go way haywire leading to death, if only death by confusion.

QAL

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You'll note I am listed as an Advisory Member. I am honored to be listed as such. See the fine print - Advisory Members as a group provide advice and suggestions to Apnea Board administrators and staff concerning Apnea Board operation and administrative policies. Membership in the Advisory Member group should not be understood as in any way implying medical expertise or qualification for advising Sleep Apnea patients concerning their treatment.
08-13-2015 03:55 AM
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