A chemical stress test uses medications to simulate your heart’s response to exercise. A stress test can assess how well your heart performs during exercise. Your doctor may suggest a stress test if ...

In a stress test — also known as an exercise or treadmill test — a doctor monitors a person’s heart rate as they exercise or undergo a chemical stressor. It can show how well a person’s heart works ...

Before a stress test, you’ll need to avoid food, drink, tobacco, and caffeine for a time. You may also have to stop taking some medications. Your doctor will provide information specific to you, but ...