Prior to Test

The doctor may meet with you to talk about:

• Any allergies or other conditions you may have
• Current medicines, herbs, and supplements that you take and whether you need to stop taking them before the test
• Fasting and avoiding certain food or drinks in the days or hours before the test
• Whether you need a ride to and from the test

Description of Test

A blood pressure cuff is placed on one arm. An IV is inserted into a vein on the other arm. Small, round pads are placed on the chest. They will monitor the heart's electrical activity. Blood pressure and heart rate are checked before, during, and after exercise.

A small amount of radioactive material will be given through the IV. This material will show parts of the heart with good blood flow. A special camera will show parts of the heart that are not getting enough blood. These images are taken during rest and exercise.

The heart may first be checked while at rest. The exercise or “stress” part of the test usually involves walking on a treadmill. Walking will be slow at first and then get faster.

For those who cannot exercise, the doctor may give a special drug. The drug makes the heart act as if the person was exercising.

About 15 to 30 minutes after exercise, images will be taken of the heart.

Those with coronary artery disease may feel chest pain or angina during the test. The doctor may give medicines and stop the test.

After Test

You will be able to leave after the test is done.

If medicine was used to increase the work of the heart, there may be side effects. They may include anxiety, lightheadedness, nausea, shakiness, or problems breathing. The care staff needs to know about any symptoms.

How Long Will It Take?

The entire test takes 3 to 5 hours. It may be done in one day or in parts over several days.

Will It Hurt?

In general, this test should not be painful.

Results

The doctor will look at the images and discuss them with you.