TROPONIN T

Specimen Required
Dietary supplements containing biotin may interfere in assays and may skew results to 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. Draw blood in a SST. Centrifuge, remove serum from cells as soon as possible. Send 1.0 mL serum (0.8 mL minimum) frozen in a screw-capped plastic vial.

Alternate Specimen
Serum: Red-top; Plasma: sodium heparin

Methodology
Immunoassay

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

Reference Range
<0.01 ng/mL

Performed
Tuesday, Thursday, Saturday

Turnaround Time3-5 days
Test CodeTROPT
CPT-4 Code (s)
84484
LOINC Codes
6598-7

Warde
Medical
Laboratory