An exercise stress test is used to determine how well your heart responds during times when it’s working its hardest. The test helps determine whether your heart receives enough oxygen and proper blood flow when it needs it most, such as when you are exercising.
What a stress test reveals
A stress test, also called an exercise stress test, shows how your heart works during physical activity. Because exercise makes your heart pump harder and faster, an exercise stress test can reveal problems with blood flow within your heart.
How does a stress test work?
A stress test usually involves walking on a treadmill or riding a stationary bike while your heart rhythm, blood pressure and breathing are monitored. Or you'll receive a drug that mimics the effects of exercise.