PSA: in medical documents, when they use the word "ventilator", they usually mean the kind that requires intubating the patient and has very precise pressure and volume control.
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Here's a doctor demonstrating how you use an ambu bag. https://www.youtube.com/watch?v=1goz1l28kUQ … Obviously, the pressure isn't precise here, since he's just squeezing the bag by hand. But I think (?) that's just erring on the side of too little pressure because you're going to escalate anyway.
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how much precision is required for which outcomes? if push comes to shove, and care is being triaged, this might be one of those "you take what you can get" situations. (speaking from no experience)
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There's an escalation ladder that's already in place: oxygen masks, then intubation and ventilators if the masks don't work. Undershooting pressure means not enough oxygen, overshooting means ripping the lung.
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