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HelpTest ID TPNI Troponin I, Serum
Useful For
Exclusion diagnosis of acute myocardial infarction
Method Name
Chemiluminometric Immunoassay
Reporting Name
Troponin I, SSpecimen Type
SerumSpecimen Required
Patient Preparation: For 12 hours before specimen collection do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins.
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 2 mL
Collection Instructions:
1. Serum gel tubes should be centrifuged within 2 hours of collection.
2. Red-top tubes should be centrifuged and aliquoted within 2 hours of collection.
Specimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Frozen (preferred) | 30 days | |
| Ambient | 24 hours | ||
| Refrigerated | 24 hours |
Reference Values
≤0.04 ng/mL
Reference values have not been established for patients <17 years of age.
Day(s) Performed
Monday through Friday
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
84484
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| TPNI | Troponin I, S | 89579-7 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| TPNI | Troponin I, S | 89579-7 |
Test Classification
This test has been cleared, approved or is exempt by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.Report Available
Same day/1 to 2 daysNY State Approved
YesForms
If not ordering electronically, complete, print, and send a Cardiovascular Test Request Form (T724) with the specimen.