Troponin T

Test Code
34483


CPT Codes
84484

Preferred Specimen
1 mL frozen 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 Container
Plastic screw-cap vial


Transport Temperature
Frozen


Specimen Stability
Room temperature: Unacceptable
Refrigerated: 24 hours
Frozen: 1 year


Methodology
Immunoassay (IA)

Setup Schedule
Set up: Tues-Sat a.m.; Report available: 4-7 days


Reference Range
<0.01 ng/mL


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)


Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA
33608 Ortega Highway
San Juan Capistrano, CA 92675-2042




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.