Stress Echocardiogram

A stress echocardiogram is a procedure that uses a stress test (either exercise or pharmacologic stress) and ultrasound to evaluate a person's heart function. A physician typically orders a stress test to determine if a patient has coronary artery blockage (stenosis).

This type of echocardiogram focuses on a heart's wall motion at rest and following stress. In other words, it has two parts: a first echocardiogram which is done at rest, the second is done immediately following a vigorous workout or at peak stress caused by a special drug (stressor agent) that is delivered intravenously.

The heart muscle will not contract (or squeeze) properly if it does not get sufficient blood supply due to narrowing of coronary arteries. An echocardiogram can detect this and other abnormalities with high degree of accuracy, thereby giving the physician a better assessment of the patient's heart condition.

Test Preparation

Your doctor will tell you if you should take your regular medications prior to the test.

On the day of your test, you should:

• Not drink caffeinated beverages (coffee, tea, soda) after midnight.
  

• Not eat or drink anything for at least 4 hours before your test. If you are diabetic, check with your doctor for any other instructions.
  

• Wear comfortable walking shoes and clothing (slacks, shorts, gym suits are OK).
  

• Bring a list of your current medications.
  

What to Expect

A technologist will place several electrodes on your chest to monitor your heart tracing (ECG). A probe called a transducer will be moved over your chest to obtain different views of your heart as you lie on an exam table. You may be asked to lie in different positions and to take a breath and hold it or exhale and hold your breath to improve the views.

You will either walk on a treadmill or undergo a dobutamine stress echocardiogram. Dobutamine is a drug - administered intravenously - which causes the heart to beat faster, thus simulating exercise. The dobutamine test is designed for those who are unable to exercise adequately on a treadmill. Your doctor will decide which test is more appropriate in your case.

A physician will be present during the stress phase and will monitor your blood pressure and ECG. Your heart rate and blood pressure will be monitored during and for a short time after the test. During the peak stress or immediately after it the second echocardiogram will be done.

The test will take approximately one hour, including preparation time and monitoring afterward. The doctor probably will give you preliminary results before you leave. You may then resume your normal activities (unless you are told differently).

Where to Report

Our main office is located in the Physician Office Building adjoining St. Luke's Medical Center. Please check in at the reception desk at your scheduled test time. If you have any questions or concerns beforehand, feel free to call our office at (414)649-3366.

return to top of page