PT AND APTT

Collect a full tube to the fill line, following standard venipuncture techniques. Do not over or under fill tubes as the ratio of blood to anticoagulant (9: 1) is necessary for accurate results. Gently Invert the tube three or four times immediately after venipuncture to ensure proper mixing of blood and anticoagulant.

LAB2400 PTAPT

PTAPT

Processing Instructions (Lab use only): 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: Ambient: 4 hours (Inpatient); 12 hours (ICL/Outpatient)Refrigerated : UnacceptableFrozen (-20*C): 2 weeksFrozen (-70* C): 6 monthsWhole BloodAmbient: 12 hours (ICL/Outpatient)Refrigerated : UnacceptableFrozen: UnacceptableCauses for Rejection: Specimens that 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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