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 ...

A nuclear stress test uses a camera and a radioactive tracer — a small amount of a radioactive substance injected into a vein — to show how blood flows during rest and activity. Generally, it is a ...

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 ...