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.
Nuclear imaging tests measure the pattern of blood flow to the heart muscle. They are used in several ways: 1  To evaluate areas of damaged heart muscle after a heart attack. 2  Tracers are absorbed by healthy tissue at a different rate than by diseased or damaged tissue. 3  On a nuclear scan, areas of the heart muscle not receiving a good blood supply may appear as cold spots..