24 hours after setup at PeaceHealth Laboratories’ reference lab
CPT Code:
84484-90
Specimen Collection Details
Collection:
One 7.5 mL serum separator tube (SST). Also acceptable: One 4 mL lavender top tube (EDTA).
Handling:
Allow to clot, centrifuge and separate serum or plasma into a plastic vial. Freeze.
Stability:
5 days refrigerated or 2 months frozen. Unstable ambient.
Standard Volume:
2 mL serum or plasma
Minimum Volume:
0.8 mL serum or plasma
Transport:
Frozen on dry ice.
Comments:
Troponin T is a regulatory protein released when cardiac cell necrosis occurs. It is not normally present in blood unless cardiac damage has occurred. Troponin T frequently appears in serum as early as one to three hours after the onset of myocardial infarction and remains elevated for 10-14 days. In cases of unstable angina and acute myocardial infarction with minimal cardiac damage, low elevations of CK and CK-MB are difficult to interpret; measurement of serum troponin T is a useful diagnostic aid in such patients.
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