A cardiac marker test is performed to diagnose and monitor heart conditions, particularly myocardial infarction (heart attack). These tests measure specific proteins and enzymes released into the bloodstream when heart muscle is damaged. Key markers include troponin, creatine kinase-MB (CK-MB), and myoglobin. Elevated levels of these markers indicate heart muscle injury, helping healthcare providers confirm a heart attack, assess its severity, and guide treatment decisions. Additionally, cardiac marker tests can be used to evaluate the effectiveness of ongoing treatments and monitor for potential complications, ensuring timely and appropriate medical intervention.
Common cardiac markers tested to diagnose and monitor heart conditions include Troponin, Creatine Kinase-MB (CK-MB), and B-type Natriuretic Peptide (BNP). Troponin is highly specific for heart muscle damage and is the preferred marker for diagnosing acute myocardial infarction. CK-MB is another enzyme released during heart muscle injury but is less specific than Troponin. BNP is used to assess heart failure, as elevated levels indicate increased cardiac stress. These markers help healthcare providers evaluate the extent of heart damage, guide treatment decisions, and monitor the effectiveness of interventions.
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