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Cardiac Troponin (Troponin I & T)

Definition: Highly sensitive and specific regulatory protein biomarkers released into circulation following myocardial cellular necrosis, serving as the gold standard for diagnosing Acute Myocardial Infarction.

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High-sensitivity cardiac troponin (hs-cTn) rises within 2 to 4 hours following coronary ischemic injury and remains elevated for up to 10 to 14 days. Any serial rise and/or fall above the 99th percentile upper reference limit in the clinical context of ischemia confirms acute myocardial infarction.

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