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Coronary CTA Preparations

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 nitroglycerine during your exam (under your tongue).


After the study

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