vW Select® (15)

You are here:Home »Platelet Aggregation »Aggregation Reagents »Von Willebrand Factor »vW Select® (15)

Ristocetin CoFactor Assay — C/N 107056

vW Select is a performance optimized ristocetin CoFactor assay. Reagents, platelets, and control plasmas have been selected based on their combined performance and repeatability. Lot specific technical instructions are provided to assure improved performance compared to assays with random combinations of test components.

Net Contents: 15 Test Kit
Lyophilized Platelets 1 x 6.0mL
vW Normal Reference Plasma 1 x 0.5mL
vW Abnormal Control Plasma 1 x 0.5mL
vW Normal Control Plasma 1 x 0.5mL
vW Select Ristocetin 1 x 8.0mg
TRIS Buffered Saline 1 x 10.0mL
Purified Water 3 x 1.0mL

Product Overview

The materials provided in the vW Select System have been specifically selected to provide improved performance and repeatability compared to ordinary component combinations found in existing Ristocetin CoFactor Assay Systems.

Ristocetin CoFactor is the in vitro activity of von Willebrand Factor which is responsible for the agglutination of platelets in the presence of Ristocetin. Decreased von Willebrand Factor is associated with the von Willebrand Disease. The quantification of the Ristocetin CoFactor activity is useful in the evaluation and diagnosis of this coagulopathy. It is also useful when monitoring patient response to therapy. Levels of this Ristocetin cofactor activity are determined by the ability of the test plasma and Ristocetin to induce the agglutination of a standardized platelet suspension. Results are determined by using a lot specific Standard Reference Curve.