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23029 Von Willebrand Factor Quant Multimer (1063)

Von Willebrand Factor Quant Multimer (1063)
Test Code: VW-SUB
Synonyms/Keywords
​Ref Lab Code: 1063, Multimer Analysis
Useful For
​von Willebrand Disease
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
Plasma​ Citrated Blue Top Tube (BTT)​ ​  0.5 mL 0.4 mL aliquot​ 0.4 mL​
Collection Processing Instructions

Tubes should be drawn at least 90% full. Invert tube completely three or four times to mix. Do Not Shake. Centrifuge at 3000 rpm (refrigerated centrifuge preferred) for 10 minutes with the brake OFF. Transfer plasma to a polypropylene tube with a plastic pipette. Re-centrifuge this tube and then transfer top plasma to a clean polypropylene tube with another plastic pipette. Freeze immediately. Samples must be frozen within 2 hours of drawing.

Specimen should be collected prior to coagulation factor replacement therapy, if possible.​

Specimen Stability Information
Specimen Type Temperature Time
​Plasma ​ ​Frozen @ -20°C    14 days​
Frozen @ -80°C ​ 1 year​
Rejection Criteria
Specimens in glass vials
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Versiti Wisconsin Monday through Friday​ ​7-10 days ​Electrophoresis
Reference Lab
Versiti/Blood Center of Wisconsin
Reference Range Information
Interpretive report
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
85247​
 ​ ​ ​ ​
Synonyms/Keywords
​Ref Lab Code: 1063, Multimer Analysis
Ordering Applications
Ordering Application Description
​Centricity ​von Willebrand Mulitmer Analysis
​Cerner ​Von Willebrand Factor Multimer Assay (1064)
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
Plasma​ Citrated Blue Top Tube (BTT)​ ​  0.5 mL 0.4 mL aliquot​ 0.4 mL​
Collection Processing

Tubes should be drawn at least 90% full. Invert tube completely three or four times to mix. Do Not Shake. Centrifuge at 3000 rpm (refrigerated centrifuge preferred) for 10 minutes with the brake OFF. Transfer plasma to a polypropylene tube with a plastic pipette. Re-centrifuge this tube and then transfer top plasma to a clean polypropylene tube with another plastic pipette. Freeze immediately. Samples must be frozen within 2 hours of drawing.

Specimen should be collected prior to coagulation factor replacement therapy, if possible.​

Specimen Stability Information
Specimen Type Temperature Time
​Plasma ​ ​Frozen @ -20°C    14 days​
Frozen @ -80°C ​ 1 year​
Rejection Criteria
Specimens in glass vials
Useful For
​von Willebrand Disease
Reference Range Information
Interpretive report
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Versiti Wisconsin Monday through Friday​ ​7-10 days ​Electrophoresis
Reference Lab
Versiti/Blood Center of Wisconsin
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
85247​
 ​ ​ ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.