Pulse oximetry provides a practical, non-invasive alternative to arterial blood gas analysis for estimating oxygen saturation in primary care settings.
May support pulse oximetry in primary care; leaves open prospective validation versus arterial blood gas.
Pulse oximeters give non-invasive estimation of the arterial haemoglobin oxygen saturation. The gold standard for measurement of oxygen saturation remains arterial blood gas (ABG) analysis. However, this is invasive, painful, time consuming, costly, provides only intermittent information on patient status, and is impractical in most primary care settings.
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Plüddemann et al. (2011) studied this question.
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