COVID-19 Test Kit Secret Oximeter

Pulse oximetry, or pulse ox, is a quick, inexpensive, and needle-free test that measures the amount of oxygen in your blood. It shows whether your heart and lungs supply enough oxygen to meet your body's needs.

Red blood cells carry oxygen from your lungs to your organs. But lung or heart disease can lower the amount of oxygen in these cells. When it drops too low, your body doesn’t work as well as it should. Your heart, brain, and other organs need oxygen to do their job.

Your doctor can use this test to find out if you need to breathe in extra oxygen through a tube (your doctor may call it supplemental oxygen) or to be treated for a heart or lung problem.