Key result
Most pulse oximeters specify an accuracy root mean square (A(rms)) of 2%, but individual readings can be inaccurate by 6% or more, highlighting the need for expanded regulatory validation standards.
Design
Review
Authors
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Pulse oximeter readings may exceed specified A(rms) errors in practice; leaves open whether expanded validation standards should guide future device approvals.
Current regulatory standards for pulse oximetry relying solely on A(rms) are insufficient to capture all device behaviors, highlighting the need for expanded performance indices.
Batchelder et al. (2007) conducted a review in Pulse oximetry accuracy. Pulse oximetry was evaluated. Most pulse oximeters specify an accuracy root mean square (A(rms)) of 2%, but individual readings can be inaccurate by 6% or more, highlighting the need for expanded regulatory validation standards.
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