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A multicentre prospective observational study comparing arterial blood gas values to those obtained by pulse oximeters used in adult patients attending Australian and New Zealand hospitals by Pilcher, Janine; Ploen, Laura; McKinstry, Steve; Bardsley, George; Chien, Jimmy; Howard, Lesley; Lee, Sharon; Beckert, Lutz; Swanney, Maureen; Weatherall, Mark; Beasley, Richard is a Medicine article available to read on EtoBox.

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## Abstract ## Background Pulse oximetry is widely used in the clinical setting. The purpose of this validation study was to investigate the level of agreement between oxygen saturations measured by pulse oximeter (SpO~2~) and arterial blood gas (SaO~2~) in a range of oximeters in clinical use in Australia and New Zealand. ## Methods Paired SpO~2~ and SaO~2~ measurements were collected from 400 patients in one Australian and two New Zealand hospitals. The ages of the patients ranged from 18 to 95 years. Bias and limits of agreement were estimated. Sensitivity and specificity for detecting hypoxaemia, defined as SaO~2~ < 90%, were also estimated. ## Results The majority of participants were recruited from the Outpatient, Ward or High Dependency Unit setting. Bias, oximeter-measured minus arterial blood gas-measured oxygen saturation, was − 1.2%, with limits of agreement − 4.4 to 2.0%. SpO~2~ was at least 4% lower than SaO~2~ for 10 (2.5%) of the participants and SpO~2~ was at least 4% higher than the SaO~2~ in 3 (0.8%) of the participants. None of the participants with a SpO~2~ ≥ 92% were hypoxaemic, defined as SaO~2~ < 90%. There were no clinically significant differences in oximet

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Author

Pilcher, Janine; Ploen, Laura; McKinstry, Steve; Bardsley, George; Chien, Jimmy; Howard, Lesley; Lee, Sharon; Beckert, Lutz; Swanney, Maureen; Weatherall, Mark; Beasley, Richard

Publisher

BioMed Central; Springer (Biomed Central Ltd.); London: BioMed Central, 2001-; Springer Science and Business Media LLC; Society for Mining, Metallurgy and Exploration Inc. (ISSN 1471-2466)

Published

2020

Language

EN

Field

Medicine (Health Sciences)