CAT Scan of the Abdomen and Pelvis

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PATIENT INSTRUCTIONS FOR CAT SCAN OF THE ABDOMEN and PELVIS

St. Mary's Regional Medical Center
Dept. of Imaging Services

(207) 777-8482

A CT of the abdomen with contrast may require the use of both oral and IV contrast so that good images can be obtained. (If you have a computer, you may want to read more about this type of exam at RadiologyInfo website.

If you are 60 years old or older, a Creatinine lab test will need to be done BEFORE your CT exam. This creatinine test should also be done if you have a history of renal disease, diabetes (type I or II), renal cell carcinoma, multiple myeloma, or have only one kidney. Test results within the last 6 weeks prior to your CT exam are acceptable.  

If you have diabetes and taking any of the metformin formulas listed below, please do not take the morning dose on the day of your CT exam.

Brand Name Generic Name 
1. Actoplus MET pioglitazone/metformin
2. Avandamet                 rosiglitazone/metformin
3. Fortamet  metformin
4. Glucophage metformin
5. Glucophage XR  metformin
6. Glucovance glyburide/metformin
7. Glumetza metformin
8. Invokamet canagliflozin/metformin
9. Janumet sitagliptin/metformin
10. Jentadueto linagliptin/metformin
11. Kazano alogliptin/metformin
12. Kombiglyze XR saxagliptin/metformin
13. Metaglip glipizide/metformin
14. PrandiMet repaglinide/metformin
15. Riomet metformin
16. Xigduo XR dapagliflozin/metformin

Here are the steps to follow before your exam:

  1. Obtain the oral contrast called Omnipaque 240 from your doctor's office or from the Radiology Department at St. Mary's Regional Medical Center. Store the package in a cool, dark place overnight.
  2. On the day of your CT exam, DO NOT eat any solid foods during the 4 hours before your exam. You should drink extra water. About 2 hours before your appointment, pour one 50 ml unit dose bottle of Omnipaque 240 into 4 cups of cold water. Start drinking.
  3. FINISH drinking all the liquid 90 minutes before your CT appointment.
  4. You can take your routine medications (except for the diabetes medications listed above).
  5. Please bring a list of your current medications with you to your CT appointment. Give list to CT Technologist.
  6. If you have any questions, call the St. Mary's Regional Medical Center Radiology Department at 777-8482. Thank you.

Revised 4/15/15 DMK