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Intensive Care Medicine
Published in: Intensive Care Medicine 1/2005

01-01-2005 | Physiological Note

Effects of body temperature on blood gases

Author: Andreas Bacher

Published in: Intensive Care Medicine | Issue 1/2005

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Abstract

Background

Changes in body temperature have important impact on measurements of blood gases. In blood gas analyzers the samples are always kept constant at a temperature of exactly 37°C during the measurements, and therefore results are not correct if body temperature differs from 37°C.

Objective

Lack of knowledge of the effects of body temperature on results of blood gas monitoring may lead to wrong and potentially harmful interpretations and decisions in the clinical setting. The following article elucidates alterations in monitoring of blood gases and oxyhemoglobin saturation (SO2) that occur during changes in body temperature.
Literature
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Hansen D, Syben R, Vargas O, Spies C, Welte M (1999) The alveolar-arterial difference in oxygen tension increases with temperature-corrected determination during moderate hypothermia. Anesth Analg 88:538–542PubMed
2.
Kelman GR (1966) Digital computer subroutine for the conversion of oxygen tension into saturation. J Appl Physiol 21:1375–1376PubMed
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Michenfelder JD, Milde JH (1992) The effect of profound levels of hypothermia (below 14 degrees C) on canine cerebral metabolism. J Cereb Blood Flow Metab 12:877–880PubMed
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Michenfelder JD, Milde JH (1991) The relationship among canine brain temperature, metabolism, and function during hypothermia. Anesthesiology 75:130–136PubMed
5.
Bacher A, Illievich UM, Fitzgerald R, Ihra G, Spiss CK (1997) Changes in oxygenation variables during progressive hypothermia in anesthetized patients. J Neurosurg Anesthesiol 9:205–10PubMed
Metadata
Title
Effects of body temperature on blood gases
Author
Andreas Bacher
Publication date
01-01-2005
Publisher
Springer-Verlag
Published in
Intensive Care Medicine / Issue 1/2005
Print ISSN: 0342-4642
Electronic ISSN: 1432-1238
DOI
https://doi.org/10.1007/s00134-004-2369-3

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