Instructional Video for Lexiscan (Nuclear Stress Test) - The Heart Group, Fresno

Patient instructional video for Lexiscan (Nuclear Stress Test) procedure. A small amount of radioactive tracer is injected into the blood before and after an injection of a medication called Lexiscan, and pictures are taken of the heart muscle. Lexiscan replaces the physical act of exercise, and elicits the same response from the body that would occur if it were actually exercising. The pictures that are taken before and after the Lexiscan injection are then compared to each other, to see if there are any differences. The Lexiscan stress test is useful to determine: If there is adequate blood flow to the heart during increasing levels of activity, extent of a coronary artery blockage, or cause(s) of chest pain. Test Length: 1 ½ – 2 hours