Recommendations when to order or not order the test. May include related or preferred tests.
Molecular testing to distinguish von Willebrand disease (VWD) type 2B from pseudo (platelet-type) VWD.
Mnemonic
Unique test identifier.
GP1BA SEQ
Methodology
Process(es) used to perform the test.
Polymerase Chain Reaction/Sequencing
Performed
Days of the week the test is performed.
Varies
Reported
Expected turnaround time for a result, beginning when ARUP has received the specimen.
14-21 days
New York DOH Approval Status
Indicates test has been approved by the New York State Department of Health.
Specimens from New York clients will be sent out to a New York DOH approved laboratory, if possible.
Specimen Required
Patient Preparation
Collect
Lavender (EDTA), pink (K2EDTA) or yellow (ACD Solution A or B).
Specimen Preparation
Transport 2 mL whole blood. (Min: 1 mL)
Storage/Transport Temperature
Refrigerated.
Unacceptable Conditions
Remarks
Stability
Ambient: 7 days; Refrigerated: 1 month
Reference Interval
Normal range/expected value(s) for a specific disease state. May also include abnormal ranges.
By report
Interpretive Data
Background information for test. May include disease information, patient result explanation, recommendations, details of testing, associated diseases, explanation of possible patient results.
By report
This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.
Counseling and informed consent are recommended for genetic testing. Consent forms are available online.
The American Medical Association Current Procedural Terminology (CPT) codes published in ARUP's Laboratory Test Directory are provided for informational purposes only. The codes reflect our interpretation of CPT coding requirements based upon AMA guidelines published annually. CPT codes are provided only as guidance to assist clients with billing. ARUP strongly recommends that clients confirm CPT codes with their Medicare administrative contractor, as requirements may differ. CPT coding is the sole responsibility of the billing party. ARUP Laboratories assumes no responsibility for billing errors due to reliance on the CPT codes published.
* 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
Other names that describe the test. Synonyms.
GP1BA Sequencing
Platelet Type Von Willebrand Disease (vWD)
Pseudo Von Willebrand Disease (vWD)
Von Willebrand Disease (vWD) Platelet Type
VWD Platelet Type 4
von Willebrand Disease, Platelet Type (GP1BA) 3 Mutations (INACTIVE as of 11/15/21)
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