Von Willebrand Antigen Assay
Label Mnemonic: VWAG
Epic code: LAB1167
Downtime form: A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery
Hemostasis/Thrombosis
6240 RCP
356-3573
Specimen(s):
Collection Medium:
Light Blue top tube 2.7 mL (Na Citrate)
Minimum:
Full draw; 2.7 mL light blue top
Rejection Criteria:
Short drawn tube, clot, traumatic tap (excessive hemolysis).
Testing Schedule:
0800-1630 Monday, Wednesday and Friday. If you need results STAT, call Hematology resident (0800-1630, M-F) at 356-8628. All other times page the Pathology resident on-call at 3404.
Reference Range:
50-160%
Comments:
This test needs a separate tube! It CANNOT be done with any other coagulation tests.
Methodology:
Latex agglutination, absorption spectrophotometry
CPT Code:
85246