An enzyme test is a blood test that measures certain enzyme levels to assess how well the body’s systems are functioning. They can also be used to determine whether there has been any tissue damage. Cardiac enzyme tests are performed to help diagnose a heart attack and to determine the extent of damage to the heart muscle.  Less frequently, cardiac enzyme tests can be used to help diagnose a variety of other cardiovascular conditions, including coronary artery disease, heart failure and alcoholic cardiomyopathy. Similarly, liver enzyme tests are used to diagnose and monitor the extent of liver diseases or disorders.

There are three factors that could interfere with the enzyme test results: vigorous exercise, certain medications and (in some cases) eating before the test. Patients are strongly encouraged to follow their physician’s orders in order to maximize the accuracy of their test results.