VON WILLEBRAND ANTIGEN
Synonyms: | Factor 8 von Willebrand Factor Antigen |
Computer Code: | (VWF) |
Specimen Collection: | 2.7 mL blood (blue top tube). Transport to lab within 3 hours. |
Minimum Volume: | 1.8 mL |
Handling Instructions for Offsite Areas: | Maintain at room temperature. If specimen cannot be transported within 2 hours, centrifuge at 3,000 rpm for 20 minutes. Using a plastic pipette, transfer plasma to plastic tube and freeze plasma. |
Reference Values: | 42-176% |
Lab Code: | Diagnostic Hematology |
Requisition: | SPEC H |
Test Frequency: | Weekly |
Routine TAT: | 7 days |
Stat TAT: | contact lab |
CPT Code(s): | 85246 |
LCD or NCD: | |
Methodology Used: |
See Addendum XVII |