Specimen Requirements
Title
VON WILLEBRAND PANEL
Specimen Requirement
Includes: Factor VIII Antigen, Factor VIII Activity, Von Willebrand Factor Activity (Ristocetin Cofactor).
Draw blood in two light blue sodium citrate tubes. See coagulation test collection instructions. Send 1.5 mL min plasma frozen in a screw-capped plastic vial. Indicate “plasma/lt blue” on vial. Contact Lab for dry ice for shipment.
Methodology
Stability
Frozen 3 months
Reference Range
By Report*
Turnaround
3-5 days Performed Mon-Sat
Clinical Use
Test Code
VWPW