ABNORMAL PT / PTT EVALUATION (ACI)
: ACI, Prolonged PT Evaluation, Prolonged PTT Evaluation, Coagulation Interpretation
: PT/INR, PTT then as indicated: Thrombin Time, PT/PTT Mixing Study, DRVVT Screen & Confirm, Specific Factor Activity & Inhibitors, FBG, Reptilase Time, Pre Kallikrein Screen, HMW Kininogen Screen, and Interpretive Report.
: 85610, 85730, 85670, 85610, 85730, 85732 x3, 85613 x2, 85611 x3, 85210, 85220, 85230, 85240, 85250, 85260, 85270, 85280, 85384, 85635, 85335, 85292, 85293, 80500
: See Individual Components
: 4 2.7 mL Light Blue top tube - 3.2 % Sodium Citrate
: Citrated platelet poor plasma - requires double centrifugation if sending a plasma aliquot. Aliquot(s) must be frozen if not received by lab within 4 hours of collection.
: Pediatric: Two 2.7 mL Light blue top - 3.2 % Sodium Citrate; Neonate: Three 1.8 mL Light blu top - 3.2 & Sodium Citrate
: 4.0 mL Plasma
: 4.0 mL Plasma
: Room temperature for Light Blue top tube, must be received within 4 hours of draw. Plasma aliquot(s must be frozen if not received by lab within 4 hours of collection.
: Room temperature: 4 hours, Frozen: -70° C for one month
Reasons for Rejection
: Clotted sample, incorrectly filled tubes, incorrect tube type, grossly hemolyzed, lipemic and/or icteric sample; whole blood > 4 hours old.
: 1 - 3 days
: Presence of a Lupus Anticoagulant in the sample may interfere with this assay. Direct Thrombin and both Direct and Indirect anti-Xa Inhibitors may interfere with this assay.
: "Deliver to lab immediately. Tubes must be filled to indicator line and not clotted. Indwelling lines should be flushed with saline only and 5 mL of blood should be discarded prior to collecting samples for coagulation studies. If sending plasma aliquots, DOUBLE CENTRIFUGE plasma samples to produce platelet poor plasma. Samples received from an outside lab must be aliquoted and frozen. Grossly hemlyzed, icteric or lipemic samples may be rejected. Ordering physician name and telephone contact information MUST accompany the sample and request.
Vanderbilt Esoteric Coagulation Laboratory: 615 875-5633
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