VON WILLEBRAND FACTOR ANTIGEN
Marquette General Health System
HLAB/HOL Code |
VWAG | |
MGH LIS Test No |
1194 | |
Schedule |
Daily | |
Testing Time |
1 Day | |
Testing Lab |
Marquette General Hospital | |
QORR Test Code |
VWAG | |
Type |
1 Blue Top (Citrate) | |
Volume |
2.0 mL Plasma | |
Temperature |
Frozen | |
Preservative |
||
Collection Info |
Centrifuge light blue citrate tube. Remove plasma and spin again. Place plasma in a plastic vial and freeze immediately. Double centrifuging specimens is critical for accurate results as platelet contamination may cause spurious results. |
|
Clinical Utilities
The quantitative determination of Von Willebrand Factor Antigen.
CPT Codes
85246
The CPT codes provided are based on AMA guidelines
and are for informational purposes only. CPT coding is the
sole responsibility of the billing party. Please direct any questions
regarding coding to the payer being billed.
Reference Range
60-140% for patients with Group O blood type
75-180% for patients with blood types other than O
Note: The VW antigen level increases during pregnancy
, use of birth control pills, physical exercise, stress and also
with age. Neonates, infants, and children have normal or
mildly increased plasma VW antigen, with respect to the adult
normal reference ranges.
Component Information
Additional Comments Questions or Comments email support@mgh.org
Reference Lab Home Page
Laboratory Main Page
Marquette General Health System Home Page