Von Willebrand Antigen Assay
Label Mnemonic: VWAG
Epic code: LAB1167
Downtime form: 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:

54-159%

Comments:

This test needs a separate tube! It CANNOT be done with any other coagulation tests.

Methodology:

Latex agglutination, absorption spectrophotometry

CPT Code:
85246