von Willebrand Modified Panel
Also known as: VW PANEL 2
Use
This panel is used in the diagnostic workup of suspected von Willebrand disease; it measures both von Willebrand factor antigen and activity to aid in assessment of VWD, and it is recommended to be ordered alongside Factor VIII activity testing for a comprehensive evaluation.
Special Instructions
Order in conjunction with Factor VIII, Activity (0030095). Inactive as of 01/20/26. New York state approved.
Limitations
Not provided.
New York Approved
Methodology
Immunoassay (Multiplex Protein Panel)
Biomarkers
LOINC Codes
- 27816-8
- 6014-5
- 6014-5
- 27816-8
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Plasma
Volume
1.5 mL platelet‑poor plasma (Minimum: 1 mL)
Minimum Volume
1 mL
Container
Lt. blue (sodium citrate) tube
Collection Instructions
Collect in sodium citrate tube; transfer platelet‑poor plasma to ARUP standard transport tube.
Storage Instructions
CRITICAL FROZEN
Causes for Rejection
Serum, EDTA plasma, clotted or hemolyzed specimens
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 4 hours |
| Refrigerated | Unacceptable |
| Frozen | 3 months |
Other tests from different labs that may be relevant