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von Willebrand Disease (VWF) sequencing-994

Test info

Test name:

von Willebrand Disease (VWF) sequencing

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Alternate names:

von Willebrand disease (VWD)
von Willebrand factor deficiency
VWD type 1
VWD type 2
VWD type 2A
VWD type 2M
VWD type 3
VWD type B
VWF gene

Useful for:

Molecular test to confirm a phenotypic diagnosis of von Willebrand disease (VWD) types 1, 2A, 2B, 2M, 2N, or 3.
May also be used as carrier screening for autosomal recessive forms of VWD.

Specimen

Specimen type:

EDTA whole blood

Collection container:

Lavender (EDTA), 4mL

Volume:

3 mL

Collection instructions:

Immediately following collection, mix sample thoroughly by gently inverting 8 - 10, times to prevent clotting

Transport container:

Lavender (EDTA), 4mL

Alternate specimen type:

ACD whole blood

Alternate collection container:

Yellow ACD (A or B)

Alternate transport container:

Yellow ACD (A or B)

Transport and stability:

Refrigerated (preferred) - 2 weeks

Ambient – 72 hours

Frozen – NO

Reason for rejection:

Serum or plasma
Grossly hemolyzed specimens
Frozen specimens

Performance

Performing lab:

ARUP Laboratories Inc (3004379) via Labcorp (009985): R-NX

TAT:

10-15 days

Method:

Massively Parallel Sequencing

Clinical and Interpretive info

Reference ranges:

See report

Billing

CPT codes:

81408

Subject to medical necessity (Y/N):

Yes

Other billing information:

Medical necessity

Hospital clients submitting a request for this assay on an outpatient with Medicare should complete and submit a Molecular Medical billing request form along with the sample.

Complete and submit the form to notify us of the need for Allina Health Laboratory to bill insurance for Molecular testing performed
All information requested is required in order for your request to be completed

Molecular Medicare billing request

Tracking

Date created:

03/01/2022

Revised date:

12/18/2023

Review date:

12/18/2023