Home Products Most Popular Contact
No items in your cart.
The page below is a sample from the LabCE course Cardiac Biomarkers. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

Learn more about Cardiac Biomarkers (online CE course) »
How to Subscribe
MLS & MLT Comprehensive CE Package
Includes 123 CE courses, most popular
$95 Add to cart
Pick Your Courses
Up to 8 CE hours
$50 Add to cart
Individual course$20 Add to cart

Use of Troponins

Both cTnI and cTnT are cardiac specific, rapidly released after injury, remain in circulation for several days, are normally in low concentration in serum or plasma, and can be rapidly assayed at relatively low cost.
Currently, cTnI and cTnT are considered the best markers in diagnosing acute cardiac syndrome (ACS). Either protein can be assayed to detect an AMI or other myocardial injury. These markers are especially helpful when the patient with chest pain and symptoms of an AMI does not have a diagnostic ECG. Both cTnI and cTnT should be considered equal in their performance. However, cTnI is more common, as more vendors offered it as an FDA-approved reagent, (whereas cTnT was initially patented and thus restricted to only one vendor).
Cardiac troponin levels are used to help diagnose myocardial infarction. Elevations of cardiac troponins are especially significant when other markers are normal. These elevations predict higher risk of severe cardiac events in the coming month. In other patients with ACS, troponin elevations identify those who are at risk for cardiac events for up to six months.