Stress Tests Helpful Only in Response to Certain Symptoms
This commonly used screening, which evaluates heart function during exertion, isnít for everyone. Ask questions if your doctor recommends it.
An exercise stress test is a common screening used to help diagnose coronary artery disease (CAD) or a heart rhythm problem that is brought on by exertion. A standard stress test uses an electrocardiogram (EKG) to measure changes in the heartís electrical activity. Imaging stress tests produce pictures of how blood travels through the heart. ďA stress test helps us see how the heart functions when it is under stress and working harder than it does at rest,Ē says Christine Jellis, MD, PhD, a heart imaging specialist at Cleveland Clinic.