The Use of Pulse Oximetry in Primary Care

Pulse oximetry is now in common use in all healthcare settings. Until recently regarded as a secondary care device, the pulse oximeter is now routinely used in primary care, both in the general practice surgery and in the community. It can be useful in initial assessment, ongoing monitoring, and in both acute and chronic clinical situations. This article examines the how, when, what and why of pulse oximetry.