Syag,
“Er docs said people walked in to the er texting and talking with oxygen levels below 60. For this reason”
Why did they present themselves to the ER?
As pointed out, some people have had extremely low oxygen saturations, which are usually only seen on extremely sick patients, such as those that are in severe respiratory distress and are nearing cardiac arrest (peri-arrest).
Some providers have reported talking to patients with sp02s of 30 and 40. And had a registered sp02 of zero on another patient.
This was new and crazy.
But I have not heard of people with zero respiratory distress or dyspnea with sp02s in the 60s.