Casandra
Casandra Test Code QD43452Version 1 (DRAFT)
Performing Lab
Lab Quest DiagnosticsLab Test ID 19790
von Willebrand Disease Panel without Collagen Binding Assay (CBA)
Also known as: vWF, VWD
Clinical Use
Order TestUse
This panel is intended for the diagnostic evaluation of suspected von Willebrand disease (VWD). The omission of the collagen binding assay (CBA) suggests reliance on other von Willebrand Factor (VWF) assays—such as VWF antigen and activity measures—to assess quantitative and qualitative VWF abnormalities, helping discriminate between types of VWD.
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
Other
Biomarkers
von Willebrand Factor antigen
AnalyteConcentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Result Turnaround Time
Not provided.
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Plasma
Volume
Not provided
Minimum Volume
Not provided
Collection Instructions
Draw blood in a light blue-top tube containing 3.2% sodium citrate; centrifuge to produce platelet‑poor plasma, freeze immediately, separate frozen vial for each special coagulation assay ordered; freeze and ship on dry ice.