Device that checks oxygen levels might be early warning system for coronavirus, physician says

Levitan: Yeah, but let me just reassure individuals that what the lessons discovered in New York are, are that we do not have to put in breathing tubes, even in many of the individuals who show up with advanced COVID pneumonia.

King: How do you understand, Dr. Levitan, when you should even inspect your oxygen levels?

Levitan: Basically, you know, you just turn this little button on, and you put it on your finger, and within about 10 seconds or so, it shows your heart rate and your oxygen level.