Measurement of Platelet Retention in Glass Bead Columns
Blood is drawn in different standardized conditions through a glass bead filter. Platelet counts (electronic particle counter or phase contrast microscope) are performed before and after exposure of the blood to the glass surface. Platelet retention (P.R.) is expressed as the absolute number or, more commonly,as the percent of platelets which stick to the glass surface. The P.R. is calculated by dividing the difference of the platelet count before and after passage through the column by the initial value and expressed as a percentage.
KeywordsGlass Bead Platelet Adhesiveness Vacutainer Tube Metal Connector Plastic Holder
Unable to display preview. Download preview PDF.
- 1.Bowie E. J. W., Owen C. A., Thompson J. H. Jr., Didisheim P. Platelet adhesiveness in von Willebrandfs disease. Amer. J. clin. Path. 52, 69, 1969.Google Scholar
- 2.Hellem A. J. Platelet adhesiveness in von Willebrand’s disease. A study with a new modification of the glass bead filter method. Scand. J. Haemat., 7, 374, 1970.Google Scholar
- 3.Meyer D., Larrieu M. J. L’analyse des fonctions plaquettaires: mesure de l’adhésivité des plaquettes au verre sur sang total (méthode de Salzman). Rev. Pranç. Et. clin. biol., 12, 736, 1967.Google Scholar
- 4.Salzman E. W. Measurement of platelet adhesiveness. A simple in vitro technique demonstrating an abnormality in von Willebrand’s disease. J. Lab. elin. Med., 62, 724, 1963.Google Scholar