Your doctor will advise fasting for four to six hours prior to your CT scan. Some abdominal exams may also require that you fast before the CT scan to ensure the best possible images. Be sure to clarify preparations such as these with your doctor in advance.
CT scans, like other X-rays, are monitored and regulated to provide the minimum amount of radiation exposure. X-rays themselves are painless. Women who are pregnant, however, should not undergo X-ray procedures, as there are risks to the fetus. It’s important to discuss any allergies, medications and existing conditions with your doctor before undergoing any type of diagnostic exam.