S. Mcintyre et al., LAG TIMES BETWEEN BLOOD-SAMPLING, SPINNING AND PLASMA-GLUCOSE ESTIMATION, Australian and New Zealand Journal of Obstetrics and Gynaecology, 37(3), 1997, pp. 286-288
This study investigated the effect of lag times between blood sampling
and glucose analysis on plasma glucose results from 6 volunteers, Our
aim was to determine whether glucose tolerance test protocols should
include instructions on the handling of blood between sampling and ana
lysis. Plasma glucose levels remained stable for all lag times between
spinning and analysis. With a lag time between blood sampling and spi
nning, plasma glucose levels did not remain stable, and a significant
lowering of plasma glucose was found in the first 2 hours of lag. With
increased lag time there was no further decrease in plasma glucose le
vels. Glucose tolerance test protocols should include clear guidelines
on the handling of the blood samples between collection and analysis,
and the spinning down of samples needs to be prioritized.