| Watch: How pulse oximeters work, and why they sometimes do not |
| Thursday, November 03, 2022 06:32 PM |
| Pulse oximeters, which measure oxygen levels in blood, are one of the most widely used medical tools. They are affordable, portable, and easy to use, but they have a major drawback: Numerous studies show they are less accurate for people with darker skin. Read more. |
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