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High Altitude and Central Apneas
#21
(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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#22
(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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