This test measures the amount of fat in a stool sample. Excess fecal fat (termed steatorrhea) in stool is indicative of malabsorption disorder. The absorption of fat can be varied by production of bile in the gallbladder or liver, production of digestive enzymes in the pancreas, and normal functioning of the intestines. Decreased absorption of fat can be a sign of many different illnesses, including celiac disease, crohn's disease, cystic fibrosis, pancreatitis, etc.
When you eat fat, a small amount of the fat passes out the body through the colon. Some of the different types of fats in the feces include phospholipids, sterols, sphingolipids, cholesteryl esters, glycolipids, soaps and glycerides.
The Fecal Fat test helps your doctor identify if you have pancreatic or intestinal disorders. It can also show that enzymes, which are prescribed are working in the case of known malabsorption disorders.
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