There are many tests used to measure cardiac function. Among the most common cardiac assessment tools are the echocardiogram, cardiac stress test, and Holter monitor. An echocardiogram is used to evaluate the size of the heart chambers and check for a thickening of the walls. A cardiac stress test monitors breathing and blood pressure while the heart is at rest and during exercise. During the test, you’ll get on a treadmill or stationary bike (radioactive dye may be used to visualize blood ... [Read More]