Test Code VWPRO VON WILLEBRAND PROFILE AND PLATELET AGGREGATION STUDIES

Important Note

This collection is done at Maine Medical Center only and must be scheduled.

Please refer to specimen handling below.

Additional Codes

Software	Test Code
Label Text	VWPRO
EPIC	LAB20046

Performing Laboratory

NorDx Laboratories

Useful For

Diagnosing von Willebrand disease

Tests may be ordered individually.

Method Name

Clot-Based Assay

Latex Agglutination Quantitative

Platelet Agglutination

Reference Values

An interpretive report will be issued

Days and Times Test Performed

Tuesday through Thursday

9:00 a.m.-10:00 a.m. by appointment only

Report Available

14-21 Days

Specimen Type

Submit all of the following:

~ Plasma – Special collection and processing requirements. See specimen collection and handling.

~ Whole Blood

Preferred Container

Submit all of the following:

~ Light Blue Top Tube (Sodium Citrate) – 5 Tubes – each must be full at time of collection.

~ Lavender Top Tube (EDTA)

Specimen Collection and Handling

Please call NorDx Customer Solutions at 800-396-5814 or 207-396-7830 to schedule testing.

COAGULATION TECHNOLOGISTS WILL COLLECT THE SPECIMEN.

TESTING MUST BE PERFORMED IMMEDIATELY UPON COLLECTION.

Click here to view the Instructions for Scheduling an Appointment for Special Coagulation Testing

Testing cannot be performed on the following:

1. Patients on heparin therapy, or antiplatelet drugs.

2. Patients with thrombocytopenia (<100,000).

Add On Capable

Not Permitted

Advance Beneficiary Notice Requirements

No ABN Required

CPT Code Information

CPT Code	CPT Description	CPT Disclaimer
85240	Clotting, Factor VIII (AHG), 1-stage
85245	Clotting, Factor VIII von Willebrand (VW) Factor, Ristocetin Cofactor
85246	Clotting, Factor VIII von Willebrand (VW), Factor Antigen
85576 x5	Platelet Aggregation (in vitro),Each Agent

Performing Laboratory Location