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  • Lab Values
  • Clinical Significance
  • Treatment Options
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Test Code 1106

Test Details

Troponin I

Troponins are structural proteins of cardiac myocytes that are released into circulation after cardiac myocyte cell damage providing earlier identification of myocardial injury.

Methodology

Chemiluminescence

Patient Preparation

N/A

Preferred Specimen

Green Top Tube
(Lithium Heparin plasma separator tube with gel)

Alternate Specimen

N/A

Transport Temperature

Refrigerated (ship on frozen cold packs)

Stability

Refrigerated: 8 days

Lab Values

Lab Values

Troponin I

Female

  • Optimal: ≤34 ng/L
  • Increased Risk: >34 ng/L

Male

  • Optimal: ≤53 ng/L
  • Increased Risk: >53 ng/L
Test Details
Clinical Significance

Clinical Significance

Troponin I

  • High Risk Troponin I may indicate a recent acute myocardial infarction (MI).
  • High values should be considered together with signs and symptoms of heart disease (chest pain, pressure, or tightness), and/or electrocardiogram, stress test and other CVD diagnostic modalities.
Lab Values
Treatment Options

Treatment Options

Troponin I

  • Consider careful evaluation of CVD status with history and physical exam.
  • Troponin I elevations may also be observed in patients with ischemic or non-ischemic heart failure, cardiomyopathy, kidney disease, sepsis, uncontrolled diabetes, myocarditis, pulmonary embolism, heart contusion, and drug induced cardiotoxicity.
  • Endurance sports such as marathon running may elevate Troponin I
Clinical Significance