What factors influence arterial blood gas sampling patterns?

Nursing in Critical Care
Tom Andrews, Heather Waterman

Abstract

To investigate if patterns of arterial blood gas (ABG) sampling were influenced by values of fractional inspiratory oxygen (FiO2), partial pressure of carbon dioxide (PCO2), partial pressure of oxygen (PO2) and oxygen saturation (%SaO2). An intensive care unit (ICU) in a university teaching hospital located in the North of England, UK. A retrospective, descriptive, correlation study based on patient records. All patients admitted to the ICU for 24 hours or greater and who had an arterial line in situ. The study included the records of 65 patients consecutively admitted to the ICU. Patients in this study had more blood gases taken than reported elsewhere in the literature. While consistent correlation was found between values of FiO2, PCO2, PO2 and %SaO(2), values of PO2 were the most consistent. Values of PO2 are associated with frequency of ABG sampling and to a lesser extent on FiO2. Nurses in this study opted to track changes in oxygenation using ABGs despite continuous monitoring of %SaO2.

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Citations

Mar 6, 2013·Biochemia Medica·Geoffrey Baird
Jun 22, 2015·Nurse Education Today·Chia-Jung LinMei-Chih Huang
Jan 9, 2009·Nursing in Critical Care·Ann M PriceBeata Misztal
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Apr 1, 2009·Neonatal Network : NN·Mary Farmand

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