Pulse oximetry: theory and applications for noninvasive monitoring.

  title={Pulse oximetry: theory and applications for noninvasive monitoring.},
  author={Yitzhak Mendelson},
  journal={Clinical chemistry},
  volume={38 9},
Noninvasive measurement of arterial oxygen saturation (SaO2) by pulse oximetry is widely acknowledged to be one of the most important technological advances in monitoring clinical patients. Pulse oximeters compute SaO2 by measuring differences in the visible and near infrared absorbances of fully oxygenated and deoxygenated arterial blood. Unlike clinical blood gas analyzers, which require a sample of blood from the patient and can provide only intermittent measurement of patient oxygenation… CONTINUE READING