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Test Code TROPI TROPONIN I

Important Note

The results of this assay can be falsely decreased due to the consumption of Biotin. Patients should discontinue the use of vitamins or supplements that contain Biotin 12 hours before blood draw. See Resources for more information.

Additional Codes

LAB17445

Performing Laboratory

Porter Hospital Laboratory

Specimen Requirements

Specimen Type: Blood
Container/Tube: Tiger top, serum gel
Also Acceptable: Green top (Lithium Heparin)
Specimen Volume: Full tube, submit 05 mL serum
Specimen Minimum Volume: 0.3 mL
Collection Instructions:
1. Send specimen in original tube.
2. If there is a delay in transport of >1 hour, centrifuge tube.
3. Centrifuged samples are stable for:
• 8 hours at room temperature
• 2 days at 2-8 °C
• 1 month at -20ºC

Specimen Transport Temperature

Refrigerated

Day(s) Performed

Daily; Available STAT

Test Classification and CPT Coding

84484

Normal Reference Values

0-0.056 ng/ml

Critical Values

Troponin above 0.056 ng/ml will be called.