4 ms·

I recall at the height of COVID, it was advised to keep an eye on one's blood oxygen level

• Tagbert 3y ago
  The problem there was that, unless you were already clearly seriously ill, your blood oxygen did not drop. It was not diagnostic.
  • jackvalentine 3y ago
    Early on there was a lot of concern about 'happy' hypoxia where your blood o2 was dangerously low but people didn't feel critically ill. I'm not sure where that ended up clinically/evidentially as things moved on though.
  • zarzavat 3y ago
    Sometimes even clearly seriously ill people don’t go to the hospital. Especially in the middle of a pandemic.