A pulse oximeter is a small device that looks sort of like a chip clip or a big clothes pin. You place your finger snugly inside (most require nail side up), and within seconds it lights up with numbers indicating your blood oxygen level and heart rate. Most healthy people will get an oxygen reading around 95 to 98 percent. Some people with existing health conditions may have a lower normal reading. You should check in with your doctor if the number falls to 92 or lower.
The device will also show your heart rate. A normal resting heart rate for adults ranges from about 60 to 100 beats per minute, although athletes with a higher cardiovascular fitness will have a lower pulse.
There are two common devices that can help someone with suspected or confirmed COVID-19 to monitor their condition and to guide decision-making for patients and their families. I keep both of these in my home sickness kit at all times.
- A thermometer
- A pulse oximeter
