Test directory: Von Willebrand Factor Antigen

Ordering Code570
Test NameVon Willebrand Factor Antigen
AliasFactor VIII Related Ag
vWF Ag
Preferred SpecimenPlasma
Preferred ContainerCitrate, 3.2% (Lt Blue)
Optimum Volume2 mL
Collection InstructionsDraw 2 full Citrate tubes. Mix tubes well
Fasting recommended, but not required.
Handling InstructionsDouble centrifuge coag plasma
Separate and freeze immediately.
Transport RequirementsOahu: Frozen
Airline: Frozen
Specimen StabilityAmbient: 8 Hours
Refrigerated: 1 Day
Frozen: 1 Month
Rejection CriteriaReceived ambient or refrigerated at reference laboratory,
Hemolyzed, Thawed
Avail. StatNO
Analytic TimeUp to 5 Days
MethodologyImmunoturbidimetric Assay
Reference Lab Quest Diagnostic Lab-NI

Reference range(s)

ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
Von Willebrand Factor AntigenALLSee report.