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Von Willebrand Factor

We offer assays as well as control and reference plasma. In addition, we developed and provide the only complete assay for von Willebrand Disease Factor activity. Our vW Select Ristocetin CoFactor Assay System is CLIA compliant, achieves linear standard reference curves more easily, and includes all required reagents, controls, reference plasmas and diluents in order to help achieve cost-effective, consistent, and reliable analytical results.

Please refer to our Quality Systems and Standards for more information on how we ensure that our products meet the most stringent standards.

Quick Facts

  • Screen for Von Willebrand Disease
  • Quantify measurement of Ristocetin Cofactor Activity
  • Confirm diagnosis of Type IIB vWD
  • Monitor response to factor concentrate therapy
  • Measure inflammatory response

vW Select is a Ristocetin CoFactor Assay System comprised of optimized reagents, control plasmas, and lot specific technical information for use in the detection of von Willebrand Disease (vWD)...

The vW Factor Assay® is a system of reagents and control plasmas for the evaluation of von Willebrand Syndrome.

von Willebrand Factor Normal Control Plasma is a lyophilized citrated human plasma which has been verified for a von Willebrand Factor activity level of 80 to 120 percent...

von Willebrand Factor Abnormal Control Plasma is lyophilized citrated human plasma which has been selectively depleted of von Willebrand Factor.

von Willebrand Factor Normal Reference Plasma is lyophilized human plasma standardized using World Health Organization reference material to give consistent 90 - 110% of von Willebrand factor activity...