General instructions for Barium Enema / Virtual Colonoscopy

X-ray of the colon and rectum that uses a contrast dye (barium enema) and air to visualize the shape and condition of the colon.

This test requires the colon to be completely clean, similar to a colonoscopy.


  • Diet: 2 days before, follow a low-residue diet (avoid fruits, vegetables, legumes, whole grains, dairy, and nuts; allowed: grilled white meat/fish, white rice, strained broths). The day before, strictly liquid diet only.
  • Laxatives: An evacuant preparation using prescribed sachets must be completed the day before.
  • Fasting: Strict fasting for 6 to 8 hours before the test.
  • Pregnancy: Mandatory requirement: If there is any possibility of being pregnant, it is strictly mandatory to report it before the test.
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