Blood Gas

Pulse Oximeter Results Unreliable, Still

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Blood oxygen measurements taken with pulse oximeters in hospitals tend to be lower than they really are, according to the Equiox study, which was designed to assess the technology’s measurement capabilities in people with various skin tones. “In a real-world study of critically-ill patients, the performance [of pulse oximeters] was worse than regulatory guidance standards,” … Read more

Pulse oximeter accuracy varies across skin pigment groups

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The differences, or bias, between estimates of blood oxygen saturation levels as measured with pulse oximeters compared to the gold-standard method of measuring oxygen saturation in arterial blood varied significantly between patients with darkly pigmented skin compared to lighter skin pigment, according to research presented at the American College of Cardiology’s Annual Scientific Session (ACC.25). … Read more