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PET/CT with F-18FDG Prep

What if I am getting a PET/CT scan?

THE DAY BEFORE YOUR PET/CT EXAM

1. Follow a Low Carbohydrate Diet for 12 hours before your exam.

  • No sweets, soda, desserts
  • Limited breads, pastas, potatoes, dairy
  • Foods allowed include:  Unbreaded meats: fish, poultry, beef, pork; Vegetables; Eggs

    2. Do Not Exercise for 24 hours prior to your exam.

     
    ON THE DAY OF YOUR PET/CT EXAM

    (Allow about 2 hours for your PET/CT Appointment)

    • Plan to arrive 30 minutes PRIOR to your scheduled time to allow for registration and exam prep.
    • Do NOT eat 5 hours prior to your scheduled time.
    • Drink as much WATER as you like.
    • Take your prescription medications with WATER ONLY.
    • Do NOT eat cough drops, gum or mints (these contain sugar).
    • Wear comfortable clothing (i.e., sweats) with minimal metal (do not wear jeans, jewelry, belts, metal buttons or zippers).


    For Diabetic Patients
     

    Please tell the Imaging Department if you are diabetic.

    Insulin-Dependent

    1. 4 hours prior to scheduled appointment time, you may take short acting insulin (Humalog), injected insulin with a small meal.
    2. You should NOT take the long acting NPH type insulin on the day of the exam until after it has been completed.

     
    Noninsulin Dependent 

    The day of the exam you may NOT take:

    Acetoheximide

    Amaryl 

    Chlorpropamide

    DiaBeta

    Dymelor

    Glimepiride 

    Glipizide 

    Glucotrol 

    Glyburide 

    Micronase 

    Omase 

    Tolazamide 

    Tolinase 

    Tolbutamide

     Please call the Imaging Department with any questions.

    • Decatur (217) 876-6600 ext.: 7
    • Effingham (217) 342-2066 
    • O’Fallon (618) 416-7970

    Common Questions about PET/CT Scans