Accuracy of glucose measurements in critically ill patients
© Claverie et al. 2011
Published: 1 March 2011
The aim as to compare the accuracy of glucose measurements using a glucose meter analyser infingerstick, arterial blood and laboratory tests in critically ill patients and to determine factors influencing the bias between these methods.
This prospective observational study included 75 consecutive ICU patients, corresponding to 302 pairs of measures (aged 56 ± 16 years, SOFA 8 ± 4, IGS2 56 ± 20). Findings from two different methods of glucose measurement were compared with laboratory blood glucose measurements: glucose meter analysis of capillary blood (fingerstick), and glucose meter analysis of arterial blood during the first 3 days in the ICU. Agreement between measurements was assessed using the Bland-Altman method.
The agreement between methods for glucose level measurements appears not to be clinically acceptable. Either fingerstick or arterial glucose meter analysis have large limits of agreement with the gold standard laboratory testing for blood glucose measurements.
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.