For both of these procedures, you drink a liquid with a dye or contrast solution. An MR enterograph is another way to look at the digestive tract, but it does not use X-ray radiation. CT enterography uses a special type of X-ray to look for problems in the digestive tract. CT or magnetic resonance (MR) enterography.Your doctor studies the X-rays for signs of inflammation. A CT scan takes X-rays from several different angles around your body. Computerized axial tomography (CT scan).This procedure is sometimes done after an upper endoscopy. As the dye moves from the stomach to the intestine, a radiologist will take X-rays to look for problems. You will drink a liquid that contains a special dye that shows up on X-rays. Your doctor may take a sample of tissue during this procedure. While you are under light sedation, your doctor puts an endoscope, a flexible tube with a camera, through the esophagus (food pipe) and stomach and into the small intestine to look at its lining. During the exam, your doctor may do a biopsy to take a tissue sample from the lining of the digestive tract and view it under a microscope. Your doctor looks for any inflammation, bleeding, or ulcers. During a colonoscopy, your doctor looks at the lining of the entire large intestine and sometimes a small part of the small intestine. During a sigmoidoscopy, your doctor looks at the lining of the lower part of your large intestine. For both of these tests, doctors insert a long, thin tube with a lighted camera into the anus while you are under sedation (unconscious). Your doctor will send a sample of stool to test for blood and other signs of inflammation related to IBD. Your doctor will send a blood sample to a lab to test for inflammation, other signs of IBD, or anemia. Your doctor will ask you questions about your symptoms and do tests to find out whether you have IBD and, if so, which type. If you think you have IBD, talk to your doctor or nurse.
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