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CM-Fecalysis
Fecalysis
Question | Answer |
---|---|
What is indicated by the presence of meat or muscle fibers in feces | Vegetable fibers, meat fibers, maldigestion |
What could the presence of fecal leukocytes indicate | Cancer |
What is used for the preparation of a meat/muscle fiber analysis | Eosin in 10% ethanol |
What is the normal range of neutral fat globules | Fewer than 60 droplets |
What can be determined with the fecal fat test | Short-gut syndrome, crohn disease, whipple disease |
What does qualitative fecal fat test show? | Triglycerides, fatty acids and cholesterol |
What is the normal range of fatty acid globules | fewer than 100 droplets |
What is the normal range of feces pH for children and adults | 7-7.5 |
What test is used to differentiate carbohydrate malabsorption from maldigestion | Xylose test |
Which test is a specific carbohydrate test for carbohydrate maldigestion | Lactose intolerance test |
What can be detected using the Clinitest tablet test | Maltose, Galactose, Lactose |
In the clinitest tablet test, what is the color of the precipitate that indicates a 1% concentration | yellow |
What is the inability to convert dietary foodstuffs into readily absorbed substances called | Maldigestion |
What is the increase in fecal water output proportional to the solute load | osmotic diarrhea |
How much lactose should be ingested for the lactose intolerance test | 50g |
What digestive enzyme breaks down proteins | Proteases |
What is the inactive precursor of Trypsin | Trypsinogen |
What is the inactive precursor of Pepsin | Pepsinogen |
What is tested for in Fecal analysis tests? | Chymotrypsin, Elaastase-1. Trypsin |
What is most resistant to degradation in the digestive tract | Elastase-1 |
What is the main reagent for spectrophotometric assay of trypsin | TAME |
What causes pancreatic exocrine insufficiency | CF, Acute and Chronic Pancreatitis |
What does a result of <200 micrograms/g of stool mean in testing for Elastase-1 | Chronic pancreatitis and Pancreatic exocrine insufficiency |
What can cause a false positive test for trypsin | Proteolytic activity of bacterial enzymes, trypsin degradation, presence of trypsin inhibitors |
What is considered the gold standard for diagnosing fat malabsorption | van de Kamer titration |
What is the normal fat diet for a patient | 100 g/day |
Which method requires no reagents | Near Infrared Spectroscopy |
Which method does not account for medium-chain fatty acids | van de Kamer titration |
Which method measures the length of fatty layer and solid layer in the stool sample | Acid Steatocrit |
What is the normal range for fecal fat in adults | 2-7g/24h |