The theory and application of pulse oximetry

Mildenhall, Joanne

doi:10.12968/jpar.2008.1.2.42016

Journal of Paramedic Practice

2008

DOI: 10.12968/jpar.2008.1.2.42016

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The theory and application of pulse oximetry

Joanne Mildenhall

Abstract: Pulse oximetry is widely used in the prehospital environment, yet researchers question whether health professionals fully understand the theory to support the practical application of its use. This article explores the fundamental theory of pulse oximetry to give applied understanding. From a prehospital perspective, it details and examines the advantages and limitations of this observational aid, which must be considered when making clinical decisions regarding a patient's care.

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Cited by 3 publications

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Blood Oxygen Concentration and Physiological Data Changes During Motion While Wearing Face Masks

et al. 2022

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The study of physiological changes recorded by wearable devices during physical exercises belongs to very important research topics in neurology for the detection of motion disorders or monitoring of the fitness level during sports activities. This paper contributes to this area with studies of the effect of face masks and respirators on blood oxygen concentration, breathing frequency, and the heart rate changes. Experimental data sets include 296 segments of their total length of 60 hours, recorded on a home exercise bike under different motion conditions. Wearable instruments with oximetric, heart rate, accelerometric, and thermal camera sensors were used to fill the own database of signals recorded with selected sampling frequencies. The proposed methodology includes fundamental signal and image processing methods for signal analysis and machine learning tools for labeling image components and detecting facial temperature changes. Results show the minimal effect of mask wearing on blood oxygen concentration but its substantial influence on the breathing frequency and the heart rate. The use of a respirator substantially increased the respiratory rate for the given set of experiments under the load. This indicates how wearable sensors, computational intelligence, and machine learning can be used for motion monitoring and data analysis of signals recorded in different conditions.

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Blood Oxygen Concentration and Physiological Data Changes During Motion While Wearing Face Masks

et al. 2022

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Use of pulse oximetry as an investigative test for paediatric respiratory sleep disorders

Everitt

Roberts

Evans

2023

Arch Dis Child Educ Pract Ed

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The article covers the following elements: practical and technological considerations for optimising data collection and output; reference ranges for oximetry parameters across the ages; things to consider when interpreting a pulse oximetry study (eg, sleep/wake times); the ability of pulse oximetry to predict obstructive sleep apnoea; using oximetry as a screening tool for sleep disordered breathing in children with Down syndrome; things to consider when setting up a home oximetry service; and a case of an infant being weaned from oxygen using pulse oximetry studies.

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The use of telemedicine technology to support in pre-hospital patient care

Sibson

2014

Journal of Paramedic Practice

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Lack of accurate clinical information and availability to expertise at the incident scene can affect patient safety and outcome. The use of technology to capture, transmit and assess patient data and information can be used to ensure better patient outcome and more efficient use of resources. Telemedicine can also be of benefit for ED doctors to discuss emergency situations with paramedics, providing advice in terms of treatment, triage and referral to alternative medical facilities.

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The theory and application of pulse oximetry

Cited by 3 publications

References 29 publications

Blood Oxygen Concentration and Physiological Data Changes During Motion While Wearing Face Masks

Blood Oxygen Concentration and Physiological Data Changes During Motion While Wearing Face Masks

Use of pulse oximetry as an investigative test for paediatric respiratory sleep disorders

The use of telemedicine technology to support in pre-hospital patient care

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