After a patient drinks the Xylose, urine or blood are collected over the next several hours. Low Xylose levels in the blood or urine are highly suggestive of a abnormality of the intestinal mucosa. Pancreatic function tests These are performed only in some centers. A tube is placed through the nose or mouth so that it's tip is lying next to the opening of the pancreatic duct into the duodenum. Secretions are collected and the content of bicarbonate and enzymes are measured after the pancreas has been stimulated with a hormone called secretin or with a test meal.
Pancreatic insufficiency is indicated if the bicarbonate and enzyme concentrations are very low.
Another pancreatic function test, the Bentiromide test, involves ingestion of a chemical called bentiromide. Pancreatic insufficiency is suspected when urinary PABA levels are low. Please take the time to read our disclaimer .