The blood test performed to determine cardiac damage in an acute myocardial infarction is a(n) :

A) cardiac enzyme.
B) cholesterol.
C) triglyceride.
D) angiography.

A cardiac enzyme blood test, also known as a cardiac biomarker test, is used to measure the levels of enzymes released from the heart muscles during a heart attack. The most commonly measured enzymes are creatine kinase (CK-MB), troponin I, and troponin T. Elevated levels of these enzymes can indicate cardiac damage and help diagnose an acute myocardial infarction. Cholesterol and triglycerides are not specific tests for cardiac damage, and angiography is a diagnostic imaging test used to visualize the blood vessels of the heart.