Hemophilia A; Procoagulant Factor 8; Hemophiliac Factor; Antihemophilic Factor; Factor VIII Functional
Quest Diagnostics San Juan Capistrano
(one) 1.8 mL or (one) 2.7 mL Blood
Light Blue (Sodium Citrate)
Room Temp: Unacceptable; Refrigerated: Unacceptable; Frozen: 1 Year
1 mL Platelet-Poor Plasma
0.5 mL Platelet-Poor Plasma
Centrifuge light blue-top tube for 15 minutes at approximately 1500 g within 60 minutes of collection. Using a plastic pipette, remove plasma, taking care to avoid the WBC/platelet buffy layer and place into a plastic vial. Centrifuge a second time and transfer platelet-poor plasma into a new plastic vial. Plaasma must be free of platelets (10,000/mcL). Freeze immediately and send frozen.
Storage of whole blood at refrigerated temp prior to processing may lead to cryoprecipitate formation and falsely low Factor VIII and von Willebrand Factor studies.