I asked this question because, there raised a question in administering direct oxygen, 90% oxygen, to breathing inability patients, where as the atmospheric oxygen is just 21%, Actually the patients who were unable to sustain oxygen absorption, or any other problem. if that is the case, what will happen if direct oxygen is supplemented by invasive method. I do not have a medical back round, please make it clear. Astronauts and sea divers require oxygen because they need., whereas here in the earth planet, oxygen is abundant. Previously, i raised a question on giving more oxygen to fish, a few have answered about the ill effects about the procedure. This raised the above question to human being. please clarify. I would like to know the mechanism and history. How do the exhaling CO2 handled?.Please give suitable reference.
Howdy Govindarajan,
1) Because the mixing ratio in oxygen bottles is higher and;
2) It is administered in lungs with a higher pressure than the atmospheric oxygen binary gas partial pressure;
3) Medical quality oxygen is produced mainly in Europe and hence is exported a lot from there. Production is not high enough to accommodate world demand due to COVID-19.
4) See also:
https://www.aljazeera.com/news/2021/5/11/covid-19-why-how-and-when-is-medical-oxygen-used
Cheers,
Frank