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Troponin T
Test Code34483X
CPT Codes
84484
Preferred Specimen
1 mL serum
Patient Preparation
Dietary supplements containing biotin may interfere in assays and may skew results to be either falsely high or falsely low. For patients receiving the recommended daily doses of biotin, draw samples at least 8 hours following the last biotin supplementation. For patients on mega-doses of biotin supplements, draw samples at least 72 hours following the last biotin supplementation.
Minimum Volume
0.5 mL
Other Acceptable Specimens
Plasma collected in a sodium heparin (green-top) tube
Instructions
Remove serum from cells and freeze as soon as possible. Minimize exposure to room temperature. Avoid repeated freeze/thaw cycles.
Transport Temperature
Frozen
Specimen Stability
Room temperature: Unacceptable
Refrigerated: 24 hours
Frozen: 1 year
Refrigerated: 24 hours
Frozen: 1 year
Methodology
Immunoassay (IA)
Setup Schedule
Night Sets up 5 days a week.
Clinical Significance
Troponin T (TnT) is an independent prognostic marker which can predict the near-, mid-, or even long-term outcome of patients with acute coronary syndrome (ACS)