APTT

Collect a full tube to the fill line. Do not over or underfill tubesImmediate Specimen Processing: Gently invert the tube 3 or 4 times immediately after venipuncture to ensure proper mixing of blood and anticoagulantAmbulatory Transport Temperature to Inova Central Lab: AmbientSpecimen Stability: 12 hours (ICL/Outpatient)

LAB2207 APTT

APTT

Processing Instructions: If testing will be delayed (4 hours for inpatient or 12 hours for outpatient), centrifuge, transfer all plasma into a plastic vial, and centrifuge plasma again. Aliquot plasma into separate plastic vial leaving 0.25 mL in the bottom of centrifuged vial. Freeze plasma immediately (no longer than 4 hours after collection) at -20° C.Platelet Poor Plasma Instructions Minimum Testing Volume: 1 mL (plasma) Transport Temperature: Ambient Stability: PlasmaAmbient: 4 hours (Inpatient); 12 hours (ICL/Outpatient)Refrigerated : UnacceptableFrozen (-20*C): 2 weeksFrozen (-70* C): 6 monthsWhole BloodAmbient: 12 hours (ICL/Outpatient)Refrigerated : UnacceptableFrozen: Unacceptable Causes for Rejection: Specimens submitted Refrigerated or greater than 4 hours after collection at room temperature, are short draws, clotted or have excessive hemolysis, icterus or lipemia.ICL Specimen Team Only: Ambient whole blood is acceptable if received in lab within 12 hours. Ambient plasma is acceptable if received in lab within 12 hours. Do not reject.

STAT 2-Hours|Routine 8-Hours|Timed 8-Hours

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