What is the test?: If a patient is unable to exercise, a dobutamine stress echocardiogram is done. This test uses a drug and harmless sound waves to help see if any blood vessels in your heart are blocked. First the drug dobutamine is given to make your heart beat faster, as if you were exercising. Then, painless sound waves are bounced off your heart. The sound waves change into images that doctors can watch on the monitor.
How do I prepare for the test?: Be sure to mention what medicines you take when your test is scheduled. Ask if you should take any before the test. Don't eat, drink, smoke, or have any caffeine for four (4) hours before the test. Sips of water are OK. You may need to undress from the waist up and put on a short hospital gown, so make sure to wear a two-piece outfit.
During the test
- Small pads (electrodes) are placed on your chest to record your heartbeat.
- An intravenous (IV) line is started in your arm.
- A painless device (transducer) coated with cool gel is moved firmly over your chest. This device creates sound waves that make images of your heart.
- Instead of exercise, dobutamine is slowly given through IV. It is normal to feel your heart pound for a few minutes.
- Echo images are taken while you feel the effects of the drug and after your pulse returns to normal.
- You may be given a second drug to slow your heartbeat to a normal level.
- Your heart and blood pressure are monitored during and after your test.
Report any symptoms: Be sure to tell the doctor if you feel any of the following during the test:
- Chest, arm, or jaw discomfort
- Shortness of breath
- Nausea
- Headache
- Irregular heartbeat
- Feeling flushed
After your test: You may return to a normal routine when your test is over. Ask your doctors about taking any medicine that you were told to skip before the test.
Your test results: At a future office visit your doctor will discuss your test results with you. The test results help the doctor plan your treatment and any other tests that may be needed.
