Exercise stress testBy Mayo Clinic staff
Original Article: http://www.mayoclinic.com/health/medical/IM04234
Exercise stress test
In an exercise stress test, electrodes are taped to your chest to detect your heart's rhythm. A nurse or technician will watch your heartbeat on a monitor while you exercise. If your doctor orders a nuclear stress test, you'll also receive a shot of radioactive dye that shows the blood flow to your heart muscle.