What is the clinical significance of a positive 'Fecal Elastase' test?
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Correct answer: Low levels indicate pancreatic exocrine insufficiency
Elastase-1 is a protease produced by the pancreas that remains stable during its passage through the gut. Low concentrations in the stool are a highly specific indicator of pancreatic exocrine insufficiency, such as that seen in cystic fibrosis or chronic pancreatitis.
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More Stool Examination questions
- Which of the following describes the 'Hanging Drop' preparation used for stool samples?
- Which finding in a stool sample is most characteristic of 'Pseudomembranous Colitis'?
- Which of the following conditions is most likely associated with 'steatorrhea' (excess fat in the stool)?
- What is the clinical significance of finding 'rice-water' stools in a patient?
- The presence of 'Charcot-Leyden crystals' in stool microscopic examination is most suggestive of:
- Which chemical substance is detected in a standard Guaiac-based Fecal Occult Blood Test (gFOBT)?