Nuclear Exercise Testing is the New York Cardiac Diagnostic Center's most comprehensive test. A nuclear stress test measures blood flow to your heart muscle both at rest and during stress (exercise) on the heart. It's performed similar to a routine exercise stress test, but provides images that can show areas of low blood flow through the heart and areas of damaged heart muscle. With this stress test a small amount of radioactive substance is used to determine the health of the heart and blood flow to the heart.
What to Expect During Nuclear Exercise Testing
An intravenous (IV) access will be placed in your arm, and a nuclear isotope will then be injected at peak exercise (stress). Electrodes will be painlessly placed on your skin, and you will be asked to walk on a treadmill, slowly at first, with gradual increases in the speed and incline of the machine every three minutes. During this time, you will be monitored for symptoms, heart rate, and rhythm. This test will be terminated at any time if you are unable to continue or at the cardiologist’s advice. Once the exercise portion of the test is complete, images of your heart will be taken. You will then return for repeat resting pictures sometime after a 3 to 14-hour break.