Thrombin-Antithrombin (TAT) Complex
Order Name
Thrombin(TAT)
Test Number: 6905729
Revision Date 06/26/2026
Test Number: 6905729
Revision Date 06/26/2026
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Thrombin-Antithrombin (TAT) Complex
|
Enzyme-Linked Immunosorbent Assay (ELISA) | 14182-0 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 2 mL (1 mL) | Platelet Poor Plasma | Sodium Citrate 3.2% (Blue Top) | Frozen |
| Instructions | Specimen: 2mL (1mL) Plasma from Blue-top (sodium citrate) tube Frozen (Note: 1mL This volume does not allow for repeat testing.) Collection: Blood should be collected in a blue-top tube containing 3.2% buffered sodium citrate.33 Evacuated collection tubes must be filled to completion to ensure a proper blood-to-anticoagulant ratio.34,35 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 unless the sample is collected using a winged (butterfly) collection system. With a winged blood collection set, a discard tube should be drawn first to account for the dead space of the tubing and prevent under-filling of the evacuated tube.36,37 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 alternative 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. Please print and use the Volume Guide for Coagulation Testing to ensure proper draw volume. |
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| GENERAL INFORMATION | |
|---|---|
| Expected TAT | 3 - 9 days |
| CPT Code(s) | 83520 |
| Internal Comments | Bulk Load by PS and JK 4/11/2017 9/9/19 update link - JK 6/26/26 JK -dc Labcorp Test Code: 500012 Old Specimen Type: Blue-top (sodium citrate) tube Specimen Storage: FREEZE Stability: Room temperature up to 4 hours Refrigerated up to 4 hours Acceptable freeze/thaw up to 5 cycles Specimen Collection: Blood should be collected in a blue top tube containing 3.2% buffered sodium citrate.[1] Evacuated collection tube 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 and (using a plastic transfer pipette) carefully remove the plasma without disturbing the cells. Transfer the plasma into a LabCorp PP transpak frozen purple tube with screw cap (LabCorp ID 49482). Freeze immediately and maintain frozen until tested. To avoid delays in turnaround time when requesting multiple test on frozen samples, PLEASE SUBMIT SEPARATE FROZEN SPECIMENS FOR EACH TEST REQUESTED. PRINT AND USE THE SPECIMEN COLLECTION BULLETIN AS A TUBE-FILLING GUIDE. Special Instructions: Testing is performed at Esoterix Coagulation Laboratory: UY#300714 Specimen Stability: Ambient: Not Available, Refrigerated : Not Available, Frozen: Not Available new Test Code [6905729] Thrombin-Antithrombin (TAT) Complex (LCA 500012) Until Replacement is configured, please use Misc New Test for LCA tc# 015045 Thrombin-Antithrombin Complex |
| Service Provided By |  |
| Lab Section | Reference Lab |