Evaluation of total leukocytes count by flow cytometry with Beckman Coulter® DXH900 in the presence of platelet aggregates.

The Beckman Coulter® DXH900 uses the impedance method to measure the total leukocytes count. In presence of platelet aggregates, the device identifies the structural changes and associates an alarm with the leukocytes result. The aim of this study was to evaluate the influence of platelet aggregates using the principle of flow cytometry as a second assessment of the white blood cell count.

Impact of preanalytical storage on the measurement of erythrocyte sedimentation rate using an infrared microphotometer system (TEST1).

This study examined the influence of temperature and time on the pre-analytical stability of the erythrocyte sedimentation rate (ESR) measured on a TEST1 system. The first experiment included 102 samples stored at room temperature and the second experiment included 112 subjects and investigated refrigerated (2-8 °C) storage. Our study showed a stable ESR results at room temperature (15-25 °C) up to 8 h ( = 0.