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Test Code TRPS Troponin T, 5th Generation, Plasma

Reporting Name

Troponin T, 5th gen, P

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Aiding in the exclusion of the diagnosis of acute coronary syndrome in a single plasma specimen

 

Aiding in the diagnosis of acute coronary syndrome

 

Monitoring acute coronary syndromes and estimating prognosis

 

Possible utility in monitoring patients with nonischemic causes of cardiac injury

Method Name

Electrochemiluminescent Immunoassay (ECLIA)


Specimen Required


Collection Container/Tube:

Preferred: Light-green top (lithium heparin gel)

Acceptable: Green top (lithium heparin)

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions:

1. Lithium heparin gel tubes should be centrifuged within 2 hours of collection.

2. Plasma from lithium heparin tubes should be centrifuged and aliquoted into a plastic vial within 2 hours of collection.


Specimen Type

Plasma Li Heparin

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Plasma Li Heparin Frozen (preferred) 365 days
  Ambient  24 hours
  Refrigerated  24 hours

Reject Due To

Gross hemolysis Reject
Gross lipemia OK
Gross icterus OK

Reference Values

Males: ≤15 ng/L

Females: ≤10 ng/L

Interpretation

Values for healthy adults, based upon available literature and clinical guidelines, are 10 ng/L or less for women and 15 ng/L or less for men.

 

For patients who present with suspected acute coronary syndromes, troponin T values greater than the reference interval with a rising (≥10 ng/L over 2 hours or ≥12 ng/L over 6 hours) pattern are highly suggestive of acute cardiac injury. Decreasing values are indicative of recent cardiac injury. Serial measurement is highly recommended for the diagnosis or exclusion of acute coronary syndromes.

 

Troponin T values greater than the reference interval are associated with adverse events in patients with ischemic heart disease and many other clinical situations. Clinical judgment is necessary to distinguish patients who have ischemic heart disease from those who do not.

Day(s) Performed

Monday through Sunday

Report Available

Same day/1 day

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

84484

LOINC Code Information

Test ID Test Order Name Order LOINC Value
TRPS Troponin T, 5th gen, P 67151-1

 

Result ID Test Result Name Result LOINC Value
TRPS Troponin T, 5th gen, P 67151-1

Forms

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