A troponin test measures the level of troponin in our blood. Troponin is a type of protein found in the muscles of our heart. Troponin isn't normally found in the blood. When heart muscles become damaged, troponin is sent into the bloodstream. As heart damage increases, greater amounts of troponin are released in the blood.
Cardiac Troponin I (cTnI) is a protein found in cardiac muscle with a molecular weight of 22.5 kDa(1). Troponin I is part of a three subunit complex comprising of Troponin T and Troponin C. Along with tropomyosin, this structural complex forms the main component that regulates the calcium sensitive ATPase activity of actomyosin in striated skeletal and cardiac muscle(2). After cardiac injury occurs, Troponin I is released into the blood 4-6 hours after the onset of pain. The release pattern of cTnI is similar to CK-MB, but while CK-MB levels return to normal after 72 hours, Troponin I remains elevated for 6-10 days, thus providing for a longer window of detection for cardiac injury. The high specificity of cTnI measurements for the identification of myocardial damage has been demonstrated in conditions such as the perioperative period, after marathon runs, and blunt chest trauma(3). cTnI release has also been documented in cardiac conditions other than acute myocardial infarction (AMI) such as unstable angina, congestive heart failure, and ischemic damage due to coronary artery bypass surgery(4) Because of its high specificity and sensitivity in the myocardial tissue, Troponin I has recently become the most preferred biomarker for myocardial infarction.
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|Specimen||Serum or plasma / Whole blood|
|Test time||In 15-20 minutes|
|Specimen volume||1 drop of serum /plasma/ Whole blood and add 1 drops of assay buffer|
|Storage temperature||2-40°C (36-104°F)|
|SIMPLE Troponin-I Test Kit||2-40°C (36-104°F)||10T/kit|
|SIMPLE Troponin-I Test Kit||2-40°C (36-104°F)||20T/kit|
|SIMPLE Troponin-I Test Kit||2-40°C (36-104°F)||25T/kit|
|SIMPLE Troponin-I Test Kit||2-40°C (36-104°F)||30T/kit|
|SIMPLE Troponin-I Test Kit||2-40°C (36-104°F)||40T/kit|
|SIMPLE Troponin-I Test Kit||2-40°C (36-104°F)||50T/kit|