Specimen Requirements


Troponin I, High Sensitivity

Specimen Requirement

Collect SST/1.0 mL serum, allow to clot for 30 minutes, centrifuge and send refrigerated.

Alternate collection: Collect red top, allow to clot for 30 minutes, centrifuge, transfer 1.0 mL serum to a screw top plastic vial, indicate sample type on vial and send refrigerated.


Chemiluminescent Immunoassay


Room temp: 4 hours, Refrigerated: 48 hours, Frozen: 180 days

Reference Range

<47 pg/mL


1 day

Clinical Use

****Effective 12/29/2023 new testing for Troponin I, High Sensitivity offered****

Access hsTnI is a paramagnetic particle, chemiluminescent immunoassay for the quantitative determination of cardiac troponin I (cTnI) levels in human serum and plasma using the DxI Access Immunoassay Analyzers to aid in the diagnosis of myocardial infarction (MI).

Test Code