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Test Code 19790 Von Willebrand Disease Panel without Collagen Binding Assay (CBA)

Important Note

NAH Outreach Interface Order

Specimen Type

Platelet Poor Plasma

Container

Four (4) Blue Sodium Citrate

Minimum Volume

Fill each blue top tube to the indicated line during collection. A minimum of 0.75 mL of platelet poor plasma plasma (x4) must be submitted for testing.

Stability

14 days frozen

Transfer Instructions

Transport frozen, preferrably on dry ice.

CPT

85240, 85245, 85246, 85247, 85730

Result Information

 

Result Code Result Name
30016700 FVIII Act Clotting
30051900 APTT
85991141 VWF Ag
85992166 VWF Ag Multimeric
86004708 VWF Comment
86011546 Ristocetin Cofactor

Special Handling

Collect 4 blue sodium citrate tubes to the indicated fill line on the tube. Centrifuge within 1 hour of collection. Using a plastic pipette, remove plasma, taking care to avoid the WBC/platlet buffy layer and place into a plastic vial. Centrifuge a second time and transfer platelet-poor plasma into a new plastic vial(s). Feeze immmediately.