Medical Content Created by the Faculty of the
Harvard Medical School
Tell your doctor and the x-ray technicians if there is any chance you could be pregnant. If you have diabetes and take insulin, discuss this with your doctor before the test.
Stop eating and drinking the night before your test. This is important because food in your stomach or intestine could prevent the doctors from seeing a clear outline of these structures on the x-rays. Usually it isn't a problem for you to take your regular pills, but you should check with your doctor.