Maxa Internal Medicine

3505 Duluth Park Lane
Building 4, Suite 400
Duluth, Georgia 30096

Telephone: 678-597-3180
Fax: 678-597-3181

Map & Directions Patient Portal

678-597-3180

Nuclear Stress Test

This test is done at a medical center or doctor's office. It is done in stages:

You will have an IV (intravenous line) started.

  • A radioactive substance, such as thallium or sestamibi, will be injected into one of your veins.
  • You will lie down and wait for between 15 and 45 minutes.
  • A special camera will scan your heart and create pictures to show how the substance has traveled through your blood and into your heart.

Most people will then walk on a treadmill (or pedal on an exercise machine).

  • After the treadmill starts moving slowly, you will be asked to walk (or pedal) faster and on an incline.
  • If you are not able to exercise, your doctor may give you a medicine called a vasodilator. This drug widens (dilates) your heart arteries.
  • In other cases, you may get a medicine (dobutamine) that will make your heart beat faster and harder, similar to when you exercise.

Your blood pressure and heart rhythm (ECG) will be watched throughout the test.

When your heart is working as hard as it can, a radioactive substance is again injected into one of your veins.

  • You will wait for 15 to 45 minutes.
  • Again, the special camera will scan your heart and create pictures.
  • You may be allowed to get up from the table or chair and have a snack or drink.

Your doctor will compare the first and second set of pictures using a computer. This can help your doctor tell if you have heart disease or if your heart disease is becoming worse.

Related Information

Convenient Duluth Office

Our office is located in Duluth, Georgia at the corner of Duluth Park Lane and Postal Drive directly across the street from the Duluth branch of the Gwinnett Public Library and located behind the Duluth Post Office.