Fibrinogen Antigen (LABCORP)

99901000416

LAB1121: Fibrinogen Antigen | LABCORP EAP: 117052

LABCORP LAB: LT BLUE TOP-CITRATE (Refrigerated) Min Vol: 1

LABCORP LAB: LAVENDER TOP-EDTA: (Refrigerated) Min Vol: 1

Preferred specimen: Plasma collected in Blue-top (sodium citrate) tube Patient Preparation: Ideally, the patient should not be on anticoagulant therapy. Avoid warfarin (Coumadin®) therapy for two weeks prior to the test and heparin, direct Xa, and thrombin inhibitor therapies for about three days prior to testing. Special instructions: Test Includes: LA-sensitive activated partial thromboplastin time (aPTT); dilute prothrombin time (dPT); thrombin time. If any of these three screening tests is extended, reflex testing is performed and additional charges/CPT code(s) will apply. This test will reflex immediately to aPTT Mixing Studies [117199] if aPTT is five or more seconds above the upper end of the reference interval. Please print and use the Volume Guide for Coagulation Testing located at Blood Specimens: Coagulation to ensure proper draw volume.

Specimen: Plasma, frozen Volume: 3 mL Minimum Volume: 2 mL (Note: This volume does not allow for repeat testing.) Specimen Container: Blue-top (sodium citrate) tube Specimen Collection: Citrated plasma samples should be collected by double centrifugation. Blood should be collected in a blue-top tube containing 3.2% buffered sodium citrate.1 Evacuated collection tubes must be filled to completion to ensure a proper blood to anticoagulant ratio.2,3 The sample should be mixed immediately by gentle inversion at least six times to ensure adequate mixing of the anticoagulant with the blood. A discard tube is not required prior to collection of coagulation samples.4,5 When noncitrate tubes are collected for other tests, collect sterile and nonadditive (red-top) tubes prior to citrate (blue-top) tubes. Any tube containing an alternate anticoagulant should be collected after the blue-top tube. Gel-barrier tubes and serum tubes with clot initiators should also be collected after the citrate tubes. Centrifuge for 10 minutes and carefully remove 2/3 of the plasma using a plastic transfer pipette, being careful not to disturb the cells. Deliver to a plastic transport tube, cap, and recentrifuge for 10 minutes. Use a second plastic pipette to remove the plasma, staying clear of the platelets at the bottom of the tube. Transfer the plasma into a Labcorp PP transpak frozen purple tube with screw cap (Labcorp No. 49482). Freeze immediately and maintain frozen until tested. Transport Temperature: Frozen Turn-around-time (from date of pickup of specimen by Labcorp): 2-3 days Cause for Rejection: Severe hemolysis; improper labeling; clotted specimen; specimen diluted with IV fluids; samples thawed in transit; improper sample type; sample out of stability.

LABCORP LAB
STAT: 5760 min
Routine: 5760 min
Extended TAT: No TAT min
Timed: 5760 min
Life or Death: 5760 min