Every household should have a pulse oximeter, just as you have a thermometer for checking fever.

My physician parents have had one for years -- an old-school, giant box. After I came home from my #COVID19 hospitalization, I got a finger-clip one. https://twitter.com/RMFifthCircuit/status/1259656862166810624

Here's a good FAQ on pulse oximeters. As Dr. @AnnaMarieChang told @TaraParkerPope, don't stress over the make or brand; "it’s fairly straightforward technology."

(But get a REAL pulse oximeter; iPhone app = crap.) https://nyti.ms/2zqHmgg 

Here's an op-ed from today's @nytimes by 4 critical-care/ER physicians (incl. Dr. Richard Levitan, whom I've mentioned before) urging required pulse oximetry in nursing homes. Early detection of #COVID19 can help greatly in treatment. https://nyti.ms/3chItgG