Cardiac Enzyme Test

The heart releases heart enzymes when there is damage to the heart or stress because of low oxygen. Levels of troponin and Creatine Phosphokinase (CPK) increase after a heart attack. High levels of heart enzymes may also indicate acute coronary syndrome. A heart enzyme test is a blood test for the measurement of specific enzyme levels in the blood to check whether anyone has or has ever had a heart attack. The doctor can ask for the test if the person has signs of chest pain, dizziness, fatigue, shortness of breath, sweating and chills and vomiting.

A blood test of cardiac enzymes is like a normal blood test. The doctor will evaluate the biomarker levels to confirm whether the person had a heart attack and measure the severity of the damage to the heart muscle. They frequently check levels multiple times to see if they change over time. Besides checking the biomarkers, doctors may also want to test blood for other markers to check cholesterol levels, sugar level, platelet levels, kidney function and levels of B-type natriuretic peptide (BNP). Cardiac enzymes also called cardiac biomarkers include myoglobin, troponin and creatine kinase. Troponins are the most recognized and important cardiac enzymes used to diagnose acute myocardial ischemia in modern medical practice.

What is a Troponin test?

A troponin test evaluates the level of troponin in the blood. Troponin is a type of protein that is present in the muscles of the heart. Troponin is not usually found in the bloodstream. One of the heart muscles becomes damaged, troponin is sent into the blood. As heart damage increases, more troponins are released into the blood.

What is the normal heart enzyme level?

People with a healthy heart have troponin levels below 0.02 ng/mL (nanograms per milliliter). Higher than the normal level indicates severity. Other reasons for higher troponin levels are:

  • Congestive heart failure
  • Kidney disease
  • Blood clot in lungs
The heart is the sole organ that produces troponin. A biomarker test for this enzyme is the principal test used by doctors to detect heart damage from a heart attack. Heart attack is one of the medical emergencies. Instead of waiting, the test should be done on time.

Pathology services play a significant role in the diagnosis and deciding the treatment of a disease. That's why, at Unipath, we work day in and out to ensure quality reports and superior customer experience. Unipath offers a comprehensive range of clinical laboratory tests for prognosis, early detection, diagnosis, and monitoring of diseases, and boasts of state-of-the-art equipment that has been designed to provide quality reports as quickly as possible. To ease our patient's life, we offer home service too.

To book the test, please contact us at +91(79) 49006800 or visit

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