Oxygen content of the total coronary sinus collection was compared with a large volume arterial sample using a Lex-O2-Con-TL analyzer, which had been validated by the Van Slyke-Neill method.
Also, hourly blood glucose measurements were most frequently obtained by fingerstick capillary measures, with some venous and arterial sampling using point-of-care glucose meter, blood gas analyzer and central laboratory measurements.
Glucose levels used for insulin adjustment were measured in arterial blood samples using RapidLab 1265 blood gas analyzers (Siemens Healthcare Diagnostics, The Hague, the Netherlands), located in the ICU.
Glucose levels were measured in arterial blood samples using a point-of-care blood gas analyzer present at the ICU ABLL Radiometer 700 series, Copenhagen).
Whole blood glucose concentrations were measured on arterial or venous samples using an automatic biomedical blood gas analyzer (CCX, NOVA Biomedical, Waltham, MA, USA) with a colorimetric assay.
The left femoral artery was canulated for measurement of mean arterial blood pressure (MAP) and to obtain arterial blood samples used for measurement of the physiological parameters pH, pCO2, pO2, hematocrit and electrolytes.
Thus, blood glucose measures should be preferentially performed on arterial (or venous) blood samples using classical laboratory devices or blood gas/glucose analyzers, especially in the case of extreme values.
Both protocols included continuous arterial blood sampling using a dedicated on-line sampling system [24].
Blood gas tensions, hemoglobin concentrations, and acid-base balances were determined in arterial and mixed venous blood samples using a standard blood gas analyzer (ABL 800 Flex; Radiometer, Copenhagen, Denmark).
Glucose measurements should be performed on arterial rather than venous or capillary samples, using central lab or blood gas analysers rather than point-of-care glucose readers.
