Von Willebrand Factor Collagen Binding Assay

Test Name

Von Willebrand Factor Collagen Binding AssayCBAQ

LIS Code

CBAQ

Lab Section

Send out test

Fluid Type

Frozen citrated plasma

Test Includes

Von Willebrand Factor Collagen Binding and Ratio (CBA/vW Ag)

Specimen Tube Type Transport

Citrated blue coagulation tube

Summary Test Name

Von Willebrand Factor Collagen Binding Assay

Specimen Preparation Outreach

Spin and freeze plasma.

Specimen Stability

Plasma: 24 hours at room temperature, 24 hours refrigerated, 21 days frozen.

Minimum Volume

0.5 mL

Test Turnaround Time Routines And Stats

Set-up Monday and Wednesday nights in San Juan Capistrano California. Results available 3 days after set-up.

Reference Value

vWf: Collagen Binding 45-198 % normal
Ratio (CBA/vW Ag) = 0.50 ratio