Episode 1: Pulse Ox Awesomeness
Aug 07, 2019
In this episode of the APEX Live Anesthesia Podcast, we'll review the principles of pulse oximetry. Then, we'll consider a selection of clinically relevant topics related to using the pulse oximeter in the preoperative period. Finally, we'll tie it all together with a case study.
What You'll Learn
- How does the pulse oximeter work?
- What are the advantages and clinical applications of pulse oximetry?
- What are the limitations of pulse oximetry?
- Is the pulse oximeter a good monitor of ventilation?
- What conditions can cause the pulse oximeter to be unreliable?
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- Cannesson M, et al. Relation between respiratory variations in pulse oximetry plethysmographic waveform amplitude and arterial pulse pressure in ventilated patients. Crit Care. 2005 Jul; 9:R562-R568.
- Chan ED, et al. Pulse oximetry: understanding its basic principles facilitates appreciation of its limitations. Respir Med. 2013 Jun;107(6):789-99.
- DeMeulenaere, Susan. "Pulse oximetry: uses and limitations." The Journal for Nurse Practitioners 3.5 (2007): 312-317.
- Lima AP, Beelen P, Bakker J. Use of a peripheral perfusion index derived from the pulse oximetry signal as a noninvasive indicator of perfusion. Crit Care Med.
- Mannheimer PD. The light-tissue interaction of pulse oximetry. Anesth Analg. 2007 Dec;105(6 Suppl):S10-7. Review.
- Moller JT, et al. Randomized evaluation of pulse oximetry in 20,802 patients: I. Design, demography, pulse oximetry failure rate, and overall complication rate. Anesthesiology. 1993 Mar;78(3):436-44.
- Van Genderen ME, et al. Peripheral perfusion index as an early predictor for central hypovolemia in awake healthy volunteers. Anesth Analg. 2013 Feb;116(2):351-6.
- Wilkins MC. Residual bacterial contamination on reusable pulse oximetry sensors. Respir Care. 1993 Nov;38(11):1155-60.
- Yamamoto LG, et al. Nail polish does not significantly affect pulse oximetry measurements in mildly hypoxic subjects. Respir Care. 2008 Nov;53(11):1470-4.
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Podcast music by Eino Toivanen, kongano.com