Figure 1.

System of microchannel array flow analyzer. The microchannel passage time of 100 µL of physiologic saline was measured as a control, and then that of venous whole blood obtained from the subjects with 5% heparinization was determined. The whole blood passage time of the subjects was expressed after correction for the passage time of physiologic saline. Inter- and intra-assay coefficients of variation for whole blood passage time were 8% and 5%, respectively.