How a small device called a pulse oximeter measures blood oxygen levels

A pulse oximeter is a device that clips on your finger, toe, or earlobe to measure blood oxygen saturation. Here's how it works and how to read it.
CNN

FDA panel examines evidence that pulse oximeters may not work as well on dark skin

As an emergency medicine physician, Dr. Owais Durrani sees this issue regularly first-hand: When he clamps a pulse oximeter onto a patient’s fingertip to measure their blood oxygen levels, the small ...
MedPage Today

Commonly Used Fingertip Pulse Oximeters Not Up to Snuff

Among 11 fingertip pulse oximeters used during hypoxemia in healthy participants, five devices had a root mean square error (ARMS) >3%, which falls outside the ...
Wired

So Your Wearable Tracks Blood Oxygen Data. How Do You Use It?

All products featured on WIRED are independently selected by our editors. However, we may receive compensation from retailers and/or from purchases of products through these links. Learn more. Oxygen ...
PC Magazine

If You're Black and Using a Pulse Oximeter, Be Wary of Your Results

Sales of at-home pulse oximeters have exploded during the pandemic, as worried patients keep close tabs on their blood oxygen levels. But while these devices are handy, they're often less effective on ...
Business Wire

Masimo Announces the First FDA-cleared “Over-the-Counter” Fingertip Pulse Oximeter

IRVINE, Calif.--(BUSINESS WIRE)--Masimo (NASDAQ: MASI) announced today FDA clearance of MightySat ® Medical, making it the first and only FDA-cleared medical fingertip pulse oximeter available ...