A fingertip pulse oximeter distributed by Concord Health Supply, Inc., a family-owned business in Skokie, is earning praise as the best in class for home use by Wirecutter, The New York Times' popular ...

Part of what makes medical emergencies so scary is that, by nature, they can happen completely unexpectedly.

The pulse oxymeters rely on measuring the amount of light passing through a person's finger. Besides blood, this light can ...