PET/CT Scan Preparation and Exams

PET Scan

Typical reasons for PET Scans:

  • Cancer
  • Heart Problems
  • Brain Disorders
  • Central Nervous System Problems
  • Coronary Artery Disease
  • Brain Tumors
  • Memory Disorders
  • Seizures


  1. Eating: The day before your exam, follow a low carbohydrate diet, avoiding sweets, breads, pasta, rice, and cereals. Do not eat anything for at least 4-hours prior to your exam, however, try to drink 2 – 3 glasses of water during this time. Most medications do not interfere with this test and can be taken as usual.
  2. Diabetic Patients: For the test to be effective, it is important for your blood sugar levels to be low. At the time you schedule your appointment, please inform us if you are diabetic so we can provide special instructions.
  3. Exercise: Do not exercise within 24-hours of your scheduled PET scan appointment.
  4. Pain Medications: If you have difficulty lying on your back for any length of time, consider asking your doctor for pain medication to be taken prior to your exam.
  5. Claustrophobia: Most patients with claustrophobia tolerate a PET scan without difficulty. The unit is very open and only the portion of your body being imaged is within the scanner at any one time. Should you feel you may require sedation, you should discuss this need with your doctor prior to your appointment at the PET Scan Center.
  6. Prior Imaging Tests: It is very important that our radiologists have available the results of all previous imaging test (CT, MRI, PET, Sonogram, X-rays) that relate to the condition for which we are doing the PET scan. This enables the radiologist to provide the most accurate interpretation of your PET scan. Consequently, we ask that you make arrangements to deliver the films and reports for these tests to our PET Scan Center. Your PET Scan cannot be read until we have your prior imaging films and reports.

CT Scan

Typical types of CT Scans:

  • Abdomen Scan
  • Bladder Scan
  • Cervical Spine Scan
  • Cranial Scan
  • Fetus Scan
  • Gallbladder Scan
  • Heart Scan
  • Joint Scan
  • Prostate Scan
  • Spine Scan
  • Tumor Scan
  • Uterus Scan


Do not eat solid foods 4 hours prior to exam. Clear liquids and medications are allowed up to 1 hour before exam. Arrive at scheduled time.

Please bring all related films for our radiologist to review.

IMPORTANT – For patients or diabetic patients using Glucophage Glucovance, ACTOPlus or any other medication containing Metformin: You must contact the Center for special instructions before you begin this preparation. Also, if you are diabetic, age 60 or older, have a history of high blood pressure or have a known severe allergy, history of kidney disease, kidney tumor or kidney of liver transplant you must contact the Center for special instructions before you begin this preparation.

COVID-19 Update

The health and safety of our patients and staff is our top priority. As an essential business, we are here to serve the needs of our community and help minimize the spread of COVID-19. Click here for more information. Therefore, we are adjusting our hours and Center openings. Click here for Center hours/openings.