Coagulation profile 3 (PT,PTT, fibrinogen)
Days test started:
Specimen Type/Volume1 mL citrated plasma.
Shipping InformationShip in insulated container with freezer packs.
Collection ProtocolCollect blood into a citrated vacutainer tube; invert gently to mix; centrifuge; transfer the citrated plasma to a labelled, plastic vial free of additional anticoagulant; freeze immediately and ship with a freezer pack.
Atraumatic venipuncture is important to prevent activation and depletion of clotting factors during sample collection. The ratio of citrate to blood is also critical for valid test results.