A nuclear stress test uses a small amount of radioactive material and an imaging machine to create images that show blood flow to your heart. The test measures blood flow at rest and during activity, and shows areas with poor blood flow or heart damage, according to what was published by the website webmd
A nuclear stress test is one of several types of stress tests, which help determine the risk of a heart attack. A nuclear stress test can be done after a regular stress test to get more information about the heart, and the test is done with a scanner.
You may need a nuclear stress test if you have signs or symptoms of heart disease, such as chest pain or shortness of breath. A nuclear stress test can also be used to guide your treatment if you’ve been diagnosed with heart disease. Your doctor may recommend a nuclear stress test to::
Coronary artery disease diagnosis.
Coronary arteries are the main blood vessels that supply your heart with blood, oxygen and nutrients. Coronary artery disease develops when these arteries are damaged or diseased — usually due to a buildup of plaque that contains cholesterol and other substances. If you have symptoms such as chest pain or shortness of breath, A nuclear stress test can help determine if you have coronary artery disease and how severe the condition is.
If you have coronary artery disease, a nuclear stress test can tell your doctor how well treatment is working. The test also helps develop appropriate treatment by determining how much exercise your heart can handle..