Jerome B. Simon MD FRCPC FACP


Barium Enema

Top of the pageBarium EnemaA barium enema, or lower gastrointestinal (GI) examination, is an X-ray examination of the large intestine (colon and rectum). The test is used to help find problems that affect the large intestine.To make the intestine visible on an X-ray...

Air-Contrast Barium Enema

Courtesy of Intermountain Medical Imaging, Boise, Idaho. All rights reserved. In an air-contrast study, the colon is first filled with barium and then the barium is drained, leaving only a thin layer of barium on the wall of the colon. The colon is then filled with air. This barium enema image shows pouches (called…

Barium Swallow Pictures

Courtesy of Intermountain Medical Imaging, Boise, Idaho. All rights reserved. Figure 1 shows the lower end of a normal esophagus with a smooth connection between the lower esophagus and stomach. Figure 2 shows the lower end of the esophagus with a small hiatal hernia, which occurs when a small portion of the stomach…

Amylase

Amylase is an enzyme that changes complex sugars (starches) into simple sugars during digestion. Levels of amylase in the blood can be used to help diagnose and monitor diseases, such as diseases of the pancreas and salivary glands, or to determine whether the intestines have been damaged. There are two kinds of amylase…

Ammonia

An ammonia test measures the amount of ammonia in the blood. Most ammonia in the body forms when protein is broken down by bacteria in the intestines . The liver normally converts ammonia into urea, which is then eliminated in urine. Ammonia levels in the blood rise when the liver is not able to convert ammonia to urea…