LOINC long common name : Platelet aggregation ristocetin induced [Units/volume] in Blood --Low dose;
LOINC short name : PA Rist lo dose Bld-aCnc;
LOINC description : Assay for the quantitative in vitro determination of platelet function triggered by
a high concentration of ristocetin. In the presence of ristocetin, platelets bind
to von Willebrand Factor (VWF) by means of glycoprotein Ib (GPIb) receptors and triggers
platelet activation and aggregation. This term was created for, but not limited in
use to, the Cobas RISTOtest, a quantitative in vitro assay using a high concentration
of ristocetin (0.77 mg/mL) to stimulate strong platelet aggregation in whole blood
samples by impedance aggregometry.;
Has challenge