Test directory: Von Willebrand Panel

Ordering Code4396
Test NameVon Willebrand Panel
AliasvWD Panel
Profile Contains
Preferred SpecimenPlasma, Citrate, 3.2%
Preferred Container2 B (Citrate - Blue Top)
Optimum Volume5 mL
Collection InstructionsFasting specimen preferred, but not required. Draw 4 full Citrate tubes. Mix tubes well.
Handling InstructionsDouble centrifuge plasma. Separate and freeze immediately at -20 deg C. Do NOT thaw once specimen is frozen.
Transport RequirementsOahu: Frozen
Airline: Frozen
Specimen StabilityAmbient: 4 Hours, Whole Blood (unopened tube) or Plasma
Frozen: 2 Weeks Plasma
Avail. StatNO
Analytic Time7 Days
Reference Lab Quest Diagnostic Lab-NI

Reference range(s) for Factor VIII Assay

ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
Factor VIII AssayALL50-20050-200%

Reference range(s) for von Willebrand Factor Antigen

ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
von Willebrand Factor AntigenALL50-16050-160%

Reference range(s) for Ristocetin Cofactor

ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
Ristocetin CofactorALLSee report.