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Pulse Oximetry

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Data Interpretation in Anesthesia

Abstract

Pulse oximetry is a noninvasive technique to estimate the arterial oxygen saturation (SaO2) of hemoglobin. It is based on the differential absorption of light by oxyhemoglobin and deoxyhemoglobin. The oxygenated hemoglobin allows red light through and absorbs infrared light, while the deoxygenated hemoglobin allows infrared light through and absorbs more red light. A photodetector in the sensor measures unabsorbed light from the LEDs. Ratios of oxygenated to deoxygenated hemoglobin help calculate the saturation of hemoglobin in the arterial blood (SpO2).

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References

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Author information

Authors and Affiliations

  1. Department of Anesthesiology, The Children’s Hospital, University of Oklahoma Health Sciences Center, 750 NE 13th Street, Suite 200, PO Box 5318, Oklahoma City, OK, 73104, USA

    Alberto J. de Armendi MD, PhD, MBA

  2. Department of Anesthesiology, UTMB, Galveston, TX, USA

    Ranganathan Govindaraj MD, FRCA (Associate Professor for Anesthesia and Pain)

Authors
  1. Alberto J. de Armendi MD, PhD, MBA
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  2. Ranganathan Govindaraj MD, FRCA
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Corresponding author

Correspondence to Alberto J. de Armendi MD, PhD, MBA .

Editor information

Editors and Affiliations

  1. Alliance Health Midwest, Midwest City, Oklahoma, USA

    Tilak D. Raj

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© 2017 Springer International Publishing AG

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de Armendi, A.J., Govindaraj, R. (2017). Pulse Oximetry. In: Raj, T. (eds) Data Interpretation in Anesthesia. Springer, Cham. https://doi.org/10.1007/978-3-319-55862-2_8

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  • DOI: https://doi.org/10.1007/978-3-319-55862-2_8

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-55861-5

  • Online ISBN: 978-3-319-55862-2

  • eBook Packages: MedicineMedicine (R0)

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