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Nuclear Stress Testing

A nuclear stress test is an imaging method that uses radioactive material to show how well blood flows into the heart muscle while at rest and during activity.

How does it work?

This test is done in stages.


  • A radioactive substance will be injected into a vein.
  • A special camera will scan the heart and create pictures to show how the substance has traveled through the bloodstream and into the heart.


  • The patient will begin walking on a treadmill, slowly at first and then faster and on an incline.
  • If the patient is not able to exercise, he or she may be given a medicine called a vasodilator to dilate the arteries.
  • Some patients may get medicine to make the heart beat faster and harder to simulate exercise.

Blood pressure and heart rhythm will be watched throughout the test. When the heart is working as hard as it can, a radioactive substance is again injected and the special camera will once again scan the heart.

A physician will compare the first and second set of pictures using a computer. This can help detect heart disease.

Am I a good candidate for treatment?

A Deborah® physician may order this test if a patient is: provider may order this test to find out:

  • At high risk for heart disease or complications
  • Planning to start an exercise program or have surgery
  • Experiencing new chest pain or worsening angina
  • Recovering from a heart attack

Note: Several of our diagnostic services are done using equipment leased from outside companies, and these external providers do require a copay. Please inquire about copays when scheduling an appointment.

Terms & Conditions

By participating in this quiz, or screening or health assessment, I recognize and accept all risks associated with it. I understand that the program will only screen for certain risk factors and does not constitute a complete physical exam. For the diagnosis of a medical problem, I must see a physician for a complete medical exam. I release Deborah Heart and Lung Center and any other organization(s) involved in this screening, and their employees and agents, from all liabilities, medical claims or expenses which may arise from my participation. Thank you for investing in your health by participating today.