Days Set Up
Monday, Tuesday, Wednesday
Analytic Time

7 - 10 days

MiChart Code
Von Willebrand Multimeric
Soft Order Code

Test Updated:


Factor to sDS Gel Polymers
sDS Gel Electrophoresis
von Willebrand Factor Polymers

Looking to order a test?

We’ve provided helpful links to make ordering easy.

Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

Visit our provider FAQ and learn about common questions to ordering tests.

Test Overview

Test Methodology

sDS Gel Electrophoresis

Test Usage

Useful for detecting variant forms of von Willebrand disease and confirmation of diagnosis.

Reference Range

Interpretive report provided.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Offsite

Collect specimen in blue top (citrate) tube. Centrifuge specimen and aliquot citrate platelet-poor plasma into a plastic tube. Centrifuge plasma again and aliquot platelet-poor plasma into 2 plastic vials (no glass); vials should contain a minimum of 0.5 ml each. Freeze plasma immediately at <40 degrees C. Transport frozen specimen on dry ice. Specimen should be collected prior to coagulation factor replacement therapy. Proper collection and handling of specimens is critical; see Coagulation tab of the handbook to ensure that the proper technique is used. Please provide Factor VIII Assay, von Willebrand Factor Activity (Ristocetin Co-Factor), and von Willebrand Factor Antigen (Factor VIII Related Antigen) results from the same specimen collection if available.

Blue Top Tube
Normal Volume
1 ml citrated platelet-poor plasma
Minimum Volume
0.5 mL

Billing Information

CPT Code
Pro Fee Code

Have More Questions?

Explore our helpful billing resources:

Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.