Synonyms
F8; Factor 8; Factor VIII; Von Willebrand Disease; Von Willebrand Factor
Specimen Type
Plasma
Performing Lab
Versiti Wisconsin
Epic ID
LAB09234
Standard TAT
14 Days
Collection Information
Specimen Required
(four-seven) 1.8 mL or (three-six) 2.7 mL Blood
Container Type
Light Blue (Sodium Citrate)
Processing Information - Lab Use Only
Transport Temperature
Frozen-Only
Rejection Criteria
Hemolysis
Test Volume Required
(six) 1 mL Platelet-Poor Plasma
Minimum Test Volume
(six) 0.5 mL Platelet-Poor Plasma
Processing Instructions
Complete a Versiti Wisconsin Hemostasis requisition and submit with specimens frozen Monday-Friday.
Included Tests
Factor VIII Activity, VWF Antigen, VWF GP1bM Activity and VWF Collagen Binding; Reflex testing may include: VWD Type 2B Binding; VWD Type 2N Binding; VWF Propeptide Antigen; VWF Quantitative Multimer.
CPT Codes
85240; 85246; 85397; 0279U; 0283U; 0284U; 0281U; 85247
Revised
2/21/25
Initials
SA