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Test ID HSTNI Troponin I, High Sensitivity, Plasma

Specimen Required

Collection Container/Tube:

Preferred: Mint green top (lithium heparin gel)

Acceptable: Green top (lithium heparin)

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions:

1. Plasma gel tube should be centrifuged within 2 hours of collection.

2. Green-top tube should be centrifuged, and the plasma aliquoted into a plastic vial within 2 hours of collection.


If not ordering electronically, complete, print, and send a Cardiovascular Test Request Form (T724) with the specimen.

Useful For

Excluding the diagnosis of acute coronary syndromes


Explaining troponin T elevations related to skeletal myopathy and/or assay interferences

Method Name

Electrochemiluminescence Immunoassay

Reporting Name

Troponin I, High Sensitivity, P

Specimen Type


Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Plasma Frozen (preferred) 180 days
  Refrigerated  48 hours
  Ambient  4 hours

Reference Values

Males ≥18 years: ≤20 ng/L

Females ≥18 years: ≤15 ng/L


Reference values have not been established for patients less than 18 years old.

Day(s) Performed

Monday, Wednesday, Friday

Report Available

2 to 3 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test has been cleared, approved, or is exempt by the US 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.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
HSTNI Troponin I, High Sensitivity, P 89579-7


Result ID Test Result Name Result LOINC Value
HSTNI Troponin I, High Sensitivity, P 89579-7

NY State Approved