Blood glucose was determined using a bedside glucose analyzer (Yellow Springs Instruments, Yellow Springs, CO, USA).
Plasma glucose was determined using a bedside glucose analyzer (glucose oxidase method; Yellow Springs Instruments, Yellow Springs, CO, USA).
Blood samples for the measurement of plasma glucose and insulin were obtained at 2, 4, 6, 8, 10, 20, 30, 40, 50, and 60 min. Plasma glucose was determined using a bedside glucose analyzer (glucose oxidase method, Yellow Springs Instruments, Yellow Springs, OH, USA).
Blood glucose was determined using a bedside glucose analyzer (YSI, Yellow Springs, CO).
Second, capillary blood sampling was performed in a percentage of patients using a bedside glucose analyzer, which may be associated with analytic inaccuracies in critically ill patients [ 29- 31].
During the hospital stay, glucose was measured 4 6 times a day from capillary blood samples using a bedside glucose monitor (Precision Xceed; Abbott Laboratories, Abbott Park, IL), according to a predefined scheme.
Blood glucose was measured using a bedside calibrated glucose sensor (YSI 2300 STAT S; YSI, Yellow Springs, OH).
Plasma glucose was measured using a bedside YSI glucose analyzer (2300 Stat Plus; Yellow Springs Instruments, Yellow Springs, OH) throughout the study at regularly timed intervals.
Electrolytes, glucose, acid-base parameters and were measured using a bedside biochemical analyser (i-STAT Corp, Windsor, NJ, USA).
The possible explanation for this discrepancy is that some of the centres used a bedside method for measuring blood glucose, i.e. a method that provided accurate results within 5% in 46.9% and within 10% in 78.3% of the cases, respectively [ 33].
Plasma glucose concentrations were measured at the bedside using a Beckman Glucose Analyzer II (Beckman Instruments, Fullerton, CA) with a coefficient of variation (CV) of 2%.
