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Test Code
VWFCB
Test Name
von Willebrand Factor Collagen Binding
CPT Codes
0279U
Expected Turnaround Time
7 days
Clinical Utility

This assay tests the capacity of platelet adhesion at sites of blood vessel injury and can identify qualitative binding issues.

Specimen and Container Info

Specimen Type: Citrated Plasma

  

Collection Container: Light Blue Top (Sodium Citrate)

Desired Specimen Volume: 0.5 mL
Collection Instructions
  1. Collect a light blue top, sodium citrate tube via venipuncture.
Processing and Submission Instructions

A Versiti Requisition Form is required for testing.

  1. Separate plasma from cells.
  2. Transfer 0.5 mL of citrated plasma to a clear aliquot tube (screw cap). Freeze immediately.
Transport Instructions

Transport to the laboratory frozen.
Stability Requirements

Frozen

14 days
Methodology
ELISA
Reference Intervals

 See patient report.
Alternate Names
  • CBIII
  • Von Willebrand Disease
  • VWF
  • VWF CB
Reference Lab
Versiti
Testing Schedule
Varies
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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