3.4K views · 39 reactions | Pulse oximeters overestimate arterial oxygen saturation and provide more variable readings in people with darker skin pigmentations. Despite guidance from the US Food and Drug Administration (FDA), the reporting of participant skin tones in pulse oximeter testing has been inconsistent. This Research Letter discusses the need for more consistently enforced FDA guidelines for pulse oximeter testing: https://ja.ma/40cgXMR | JAMA | Facebook