what tests will a cardiologist do
Diagnostic Testing. An echocardiogram (ECG) is a primary diagnostic tool used by a cardiologist to determine a patient's heart health. In addition to being able to technically perform an ECG test, a cardiologist is also required to interpret the results. Cardiologists also interpret the results of blood and urine tests, review reports of stress tests, and conduct cardiac catheterization tests using a micro-camera to review video inside a heart.