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Troponin I

Test Code
TROPI


CPT Codes
84484

Preferred Specimen
1 mL serum (0.5 mL minimum).


Transport Container
GREEN- LITHIUM HEPARIN


Transport Temperature
REFRIGERATED


Clinical Significance
Troponin is a protein complex which regulates the contraction of striated muscle. In acute coronary syndromes (ACS), it can be detected in blood at 4-8 hours following the onset of chest pain, has a peak concentration at 12-16 hours, and remains elevated for 5-9 days. ACS represents a continuum of increasing risk from asymptomatic coronary artery disease to myocardial ischemia and thrombus development. Patients with a very low troponin have a good short term prognosis. Troponin I has been used as a reliable marker in the diagnosis of perioperative myocardial infarction in patients undergoing cardiac surgery.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.