This test combines an ultrasound (or "echocardiogram") of your heart with medication. The medication is called "Dobutamine" and it causes your heart to work harder, just like in exercise.
Because of the medication, you will not be walking on the treadmill. You will be undressed from the waist up (women will be given a hospital gown and may leave their undergarments on) to allow for EKG patches and a blood pressure cuff to be applied as well as the echocardiogram of your heart to be done. An IV will be inserted in your arm in order to deliver the medication.
The echocardiogram pictures are taken before, during, and after the medication is given. The pictures are placed next to each other so the Cardiologist can compare then and note how the heart reacts under stress, i.e. during the medication. The medication is short acting; generally the test is completed in about an hour.
The test results will be evaluated by a cardiologist either during your stay or later that same day.