Nuclear Stress Testing
A stress test can help determine if you have significant blockages in your coronary arteries. It can also help patients with known blockage to ensure enough blood is getting through to the heart muscle.
With a nuclear stress test, a harmless radioisotope is injected into a vein in the arm, which travels to the heart through the circulatory system. The chest is then scanned (without using X-rays) which reveals the status of blood flow to and around the heart.
Sometimes, it is necessary to increase blood flow through the arteries. In these cases, the patient will either be asked to walk on a treadmill or be administered medication if they are not able to walk on the treadmill.