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Troponin I

Alias: TnI

Discipline: Clinical Chemistry

Test information: The high sensitive troponin I test is a chemiluminescence microparticle immunoassay, which is used to quantitatively determine cardiac troponin I in human serum.  The test can be used to aid in diagnosing myocardial infarction, as a prognostic marker in patients with acute coronary syndrome and to identify the risk (low, moderate and elevated) of future cardiovascular diseases such as myocardial infarction, heart failure, ischaemic stroke, coronary revascularisation, and cardiovascular death in asymptomatic people.

Specimen Type(s)
  • Blood;
Other Acceptable Specimen Type(s)
Specimen Container - Adult
  • Gold Top SST BD;
Specimen Container - Paediatric
  • Clear - Plain;
  • N/A;
Part of a test profile?
Volume (min) of sample to be sent to laboratory
4 ml
Patient Preparation, Sample Handling and Transport
Troponin must be tested within 8 hours of sample collection.
Maximum add on time
Less than 7 hours
Units and Reference Ranges / Interpretation
RR for Male and Female
<1year - No RR ng/L
1year to less than 19 years - < 31 ng/L
RR Female
Equal to and greater than 19 years - less than or equal to 15 ng/L
RR Male
Equal to and greater than 19 years - less than or equal to 34 ng/L
UKAS number
UKAS accredited test?

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Last updated: 03-05-2024