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Pulse oximetry in children
  1. Ian P Sinha,
  2. Sarah J Mayell,
  3. Clare Halfhide
  1. Respiratory Unit, Alder Hey Children's Hospital, Liverpool, UK
  1. Correspondence to Dr Ian Sinha, Respiratory Unit, Alder Hey Children's Hospital, Liverpool L12 2AP, UK; iansinha{at}liv.ac.uk

Abstract

Pulse oximetry is routinely used in hospitals in high-income settings, but its theoretical basis is often poorly understood. 1 This paper summarises the physiological background, technological basis and limitations of pulse oximetry.

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