Before the study

• Do not consume any form of caffeine 12 hours prior to the study.
• Do not eat any solid foods 4 hours prior to the study
• Drink two 8 ounce glasses of water 1 hour before study.
• Take 100 mg. of Metoprolol (Lopressor) orally 1 hour prior to study.

During the study

• You will have contrast (x-ray) dye) for this study. A needle will be placed in your left arm, around the elbow area.
• You will have a 4-lead EKG attached to monitor your heart rate.
• You will have oxygen, via nasal canula (oxygen tube under your nose), to help your “breath-hold” during the study.
• You will receive one squirt of nitroglyceine during your exam (under your tongue).

After the study

• Be sure to eat and drink plenty of fluid after the study.