Pulse oximetry is a tool that provides clinical guidance. When physicians are aware of the limitations of their tools, they modify their behavior – witness the many instances where a more accurate and ...

Typically clipped over a finger (though a toe or ear lobe works, too), a pulse oximeter transmits light from sensors on one side of the device through the body part to sensors on the other side. In ...

Dear Doctor: What is “pulse ox”? My sister keeps telling our mom and dad (they’re 74 and 77) that they should be keeping keep track of it, especially right now. She hasn’t been too good at explaining ...

A new study shows just how lifesaving home monitoring of oxygen levels can be. Credit...Aileen Son for The New York Times Supported by By Tara Parker-Pope When my daughter returned to school this fall ...

Although a new study showed the devices are more error-prone in people with darker skin, doctors say they are still useful for anyone monitoring Covid-19 at home. By Tara Parker-Pope Home pulse ...

The doctors and nurses didn’t believe Tomisa Starr was having trouble breathing. Two years ago, Starr, 61, of Sacramento, California, was in the hospital for a spike in her blood pressure. She has ...

Before the coronavirus pandemic, most Americans had heard about pulse oximeters only via TV shows where EMTs shout out a patient’s “pulse ox” — or measure of oxygen in the blood. But when multiple ...