”What’s driving this reassessment is a baffling observation about Covid-19: Many patients have blood oxygen levels so low they should be dead.“

Solid overview of the intubation debate: https://www.statnews.com/2020/04/08/doctors-say-ventilators-overused-for-covid-19/

“The patients in front of me are unlike any I’ve ever seen... They looked a lot more like they had altitude sickness than pneumonia.”

Patient oxygen levels “often ‘look beyond awful,’ .... But many can speak in full sentences, don’t report shortness of breath, and have no signs of the heart or other organ abnormalities that hypoxia can cause.”