>> Sounds crazy - even if it was something in the blood, if you are oxygen starved, how can it be worse to flush your lungs with pure oxygen than not? Absolute

>> Sounds crazy - even if it was something in the blood, if you are oxygen starved, how can it be worse to flush your lungs with pure oxygen than not? Absolutely not an expert and being married to a critical care nurse doesn't make me one. From what she has told me and what I have read ventilators are not about oxygen, they are about the mechanical work to move the diaphragm in and out, something the body gets too tired to do at some point after a long battle with respiratory illness. In fact the arguments against ventilators that I have read is specifically that they put pressure on the lungs without actually increasing the absorption of oxygen. But this is one of those things the actual experts are trying to figure out right now.