Recommended test for the diagnosis and management of acute coronary syndrome.
Quantitative Chemiluminescent Immunoassay
Within 24 hours
New York DOH Approval Status
Plasma separator tube.
Remove plasma from cells ASAP or within 2 hours of collection. Specimen must be free of particulate matter including fibrin which can interfere with the assay. Avoid transferring material from the white blood cell/platelet layer located just above the red blood cells. Transport 1 mL plasma. (Min: 0.5 mL). Plasma and serum specimens should not be submitted interchangeably on the same patient with multiple draws.
Specimens exposed to repeated freeze/thaw cycles.
Ambient: 8 hours; Refrigerated: 72 hours; Frozen: 1 month
Effective May 21, 2012
0.03 ng/mL or less: Negative - repeat testing in four to six hours if clinically indicated.
0.04-0.29 ng/mL: Suspicious for myocardial injury. Serial measurements may be necessary to confirm or exclude the diagnosis of acute coronary syndrome. Repeat testing in four to six hours if indicated.
0.30 ng/mL or greater: Consistent with myocardial injury. Clinical and laboratory correlation recommended.
|Component Test Code*||Component Chart Name||LOINC|
- Troponin inhibitory subnunit