Cyto-Chex® BCT™ Allows For Accurate T-Cell Counts By Flow Cytometry 14 Days Post Sample Collection

Abstract:
The goal of this study was to demonstrate that whole blood specimens collected in Streck Cyto-Chex® Blood Collection Tube (BCT) are preserved at room temperature for HIV testing by flow cytometry for a period beyond seven days. Previous studies have demonstrated that whole blood samples collected in Cyto-Chex BCT are stabilized, yielding reliable and accurate CD4 , CD8 , and CD3 counts for seven days at room temperature (Warrino D.E. et al. (2005). Stabilization of White Blood Cells and Immunologic Markers for Extended Analysis Using Flow Cytometry. J. Immunol. Methods. 305(2): 107-119.).