Enteroclysis is a diagnostic procedure performed to examine the small intestines. It is the most through means of confirming that the small bowel is normal. This test is especially useful for evaluating diseases such as Crohn’s disease, celiac sprue and other rare small bowel diseases.
Patient Information
This is a specialized examination which may require sedation. A barium-based liquid contrast material is infused through a tube from the nose or mouth, through the esophagus and then the stomach until the tip reaches the duodenum (beginning of the small intestine). The passage of the contrast material is monitored on a fluoroscopic monitor and pictures are taken in a variety of positions.
Before the Procedure
Day before exam:
The following medications should not be taken 24 hours prior to the exam: Morphine, Codeine, Demerol or Lomotil. A mild laxative (1 bottle of Magnesium Citrate or 3 tablets of Dulcolax available at any pharmacy) should be taken during the afternoon prior to the procedure. Follow a low residue diet (i.e., low fiber, Jell-O, toast, clear soup). Drink plenty of liquids

Day of the exam:
Do not eat or drink anything the morning of the exam (except medications taken with a small amount of water).
After the Procedure: 
For the first 1-2 days after the imaging procedure, your bowel movements may appear white and chalky. This is normal. Ask your doctor if you should take a laxative and drink extra liquids to help clean out the barium and prevent constipation.