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Von Willebrand Disease (VWD)
Part 3: VWF Activity Assay

A New von Willebrand Factor Activity Assay and Testing Algorithm

Performance Characteristics of VWF:Lx

Slide 11

June 2011

The key laboratory characteristics of the new VWF activity assay, are as follows:

The lower detection limit is 3 U/dL. Linearity is between 3 to 350 U/dL. The inter- and intra-precisions are all around 5%. Citrated plasma samples are stable for 8 hours at room temperature. This assay is fully automated on our TOP coagulation analyzers which could significantly improve test turn-around time.

Performance Characteristics of VWF:Lx


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