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Printable Test Catalog - OU Medicine

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[VW2B] VON WILLEBRAND TYPE 2B BINDING<br />

SPECIMEN REQUIRED: Frozen plasma<br />

TUBE OR CONTAINER : Blue (Citrate)<br />

SPECIAL HANDLING: Draw 2 FULL citrate tube; tube must be filled<br />

to the fill line to ensure proper anticoagulant<br />

to blood ratio; Invert gently 3-4<br />

times to prevent clotting<br />

Send to lab immediately or centrifuge and<br />

freeze plasma<br />

SPECIMEN VOLUME: 2 full tubes<br />

<strong>Test</strong>ing specimen: 2 aliquot tubes with 1 mL<br />

plasma each<br />

MINIMUM VOLUME: 2 full tubes<br />

<strong>Test</strong>ing specimen: 2 transport tubes with 0.5 ml<br />

plasma each<br />

TEST AVAILABILITY: Daily<br />

TURNAR<strong>OU</strong>ND TIME: 8-12 days<br />

METHODOLOGY: Binding assay, Electrophoresis<br />

CPT: 85247; 85319<br />

[VW2N] VON WILLEBRAND TYPE 2N BINDING<br />

SPECIMEN REQUIRED: Frozen plasma<br />

TUBE OR CONTAINER : Blue (Citrate)<br />

SPECIAL HANDLING: Draw 3 FULL citrate tube; tube must be filled<br />

to the fill line to ensure proper anticoagulant<br />

to blood ratio; Invert gently 3-4<br />

times to prevent clotting<br />

Send to lab immediately or centrifuge and<br />

freeze plasma<br />

SPECIMEN VOLUME: 3 full tubes<br />

<strong>Test</strong>ing specimen: 3 transport tubes with 1 mL<br />

plasma each<br />

MINIMUM VOLUME: 2 full tubes<br />

<strong>Test</strong>ing specimen: 3 transport tubes with 0.5 ml<br />

plasma each<br />

TEST AVAILABILITY: Daily<br />

TURNAR<strong>OU</strong>ND TIME: 8-12 days<br />

METHODOLOGY: Enzyme-linked immunoassay (ELISA); Chromogenic<br />

CPT: 85246; 85240<br />

[VWAG] von Willebrand Factor Antigen<br />

SPECIMEN REQUIRED: Frozen plasma<br />

TUBE OR CONTAINER: Blue (Citrate)<br />

SPECIAL HANDLING: Draw 1 FULL citrate tube; tube must be filled<br />

to the fill line to ensure proper anticoagulant<br />

to blood ratio; Invert gently 3-4<br />

times to prevent clotting<br />

Send to lab immediately or centrifuge and<br />

freeze plasma<br />

SPECIMEN VOLUME: 1 full tube

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