Quantitative Determination of Fat
The quantitative determination of fat in stool samples, often referred to under the umbrella of digestive residues, is a diagnostic test used to evaluate fat absorption and to identify malabsorption syndromes. This test, measures the amount of fat that is excreted in the stool. Excessive fat in the stool, a condition known as steatorrhea, can indicate problems with digestion or absorption of fat in the gastrointestinal tract. The results of this test help in diagnosing conditions such as pancreatic insufficiency, cystic fibrosis, celiac disease, and Crohn's disease....
Description
Individuals showing symptoms of malabsorption, such as chronic diarrhea, greasy stools, unexplained weight loss, or abdominal discomfort, should undergo this test. It is also recommended for patients suspected of having pancreatic insufficiency, cystic fibrosis, celiac disease, or Crohn’s disease.
Symptoms that might indicate a need for a fecal fat test include bulky stools, stools that are oily or greasy, floating stools, weight loss, and abdominal bloating or pain. These symptoms suggest that fat is not being properly absorbed by the body.
Abnormal results, typically indicating excess fat in the stool, can be caused by conditions that affect fat absorption such as pancreatic insufficiency, celiac disease, Crohn’s disease, and certain liver diseases. These conditions impair the digestion or absorption of fats.
The collected stool samples are analyzed in a laboratory to measure the amount of fat that was not absorbed by the body.
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