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.
What is a pharmacological nuclear stress test? A pharmacological nuclear stress test is a diagnostic test used to evaluate blood flow to the heart. During the test, a small amount of radioactive tracer is injected into a vein. A special camera, called a gamma camera, detects the radiation released by the tracer to produce computer images of the heart.