Find Huntsville Arkansas hospitals, children's and pediatric centers, patient care & medical facilities, urgent care, emergency room, ambulance, and EMS emergency services. Hospitals provide information on patients, healthcare, medical procedures, doctor visits, and medical insurance. Huntsville Hospital. Find Huntsville Arkansas hospitals, children's and pediatric centers, patient care & medical facilities, urgent care, emergency room, ambulance, and EMS emergency services. Hospitals provide information on patients, healthcare, medical procedures, doctor visits, and medical insurance.
By Mayo Clinic Staff. A nuclear stress test measures blood flow to your heart at rest and while your heart is working harder as a result of exertion or medication. The test provides images that can show areas of low blood flow through the heart and damaged heart muscle.
1 A stress test is a type of nuclear medicine exam: you receive a radioactive tracer that highlights your blood so a special camera can see it easily. 2  A stress test is used to evaluate the cause of chest pain or measure the strength of your heart after a heart attack or surgery, for example.