![](http://www.alamy.com/thumbs/6/30048687-F14C-4480-8968-DCA353B64A6B/2BDHH0J.jpg)
Pulse oximeter on finger is a good way to test blood oxygen level in case of virus infection of the lungs
Pulse oximeter on finger is a good way to test blood oxygen level in case of virus infection of the lungs
Size: 5500px × 4043px
Location: United States
Photo credit: © Backyard Productions / Alamy / Afripics
License: Royalty Free
Model Released: No
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