Ordering Recommendation
Not an initial test in the diagnosis of von Willebrand disease (VWD). Ordering should be limited to specialists. Supplementary test for the subclassification of established VWD.
Mnemonic
VWF C BIND
Methodology
Enzyme-Linked Immunosorbent Assay
Performed
Varies
Reported
3-10 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect
Light blue (sodium citrate).
Specimen Preparation
Transfer 1 mL citrated plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL)
Test is not performed at ARUP; separate specimens must be submitted when multiple tests are ordered.
Storage/Transport Temperature
CRITICAL FROZEN.
Unacceptable Conditions
Hemolyzed specimens.
Remarks
Stability
Ambient: 24 hours; Refrigerated: 24 hours; Frozen: 3 weeks
Reference Interval
By report
Interpretive Data
Compliance Category
Performed by non-ARUP Laboratory
Note
Hotline History
Hotline History
Date of Change
Test Name Change
Methodology
Performance/Reported Schedule
Specimen Requirements
Reference Interval
Interpretive Data
Note
CPT Code
Component Change
Other Interface Change
New Test
Inactive
N/A
CPT Codes
83520
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
2007137 | VWF Collagen Binding | 50377-1 |
3003442 | VWF Ratio | 50378-9 |
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
von Willebrand Factor (VWF) Collagen Binding
Quest Diagnostics San Juan Capistrano Inc.