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In what part of the digestive tract do pancreatic enzymes and bile salts contribute to digestion?
Where does the reabsorption of water take place in the primary digestive process?
Which of the following tests is not performed to detect osmotic diarrhea?
The normal composition of feces includes all of the following except:
What is the fecal test that requires a 3-day specimen?
The normal brown color of the feces is produced by:
Diarrhea can result from all of the following except:
Stools from persons with steatorrhea will contain excess amounts of:
Which of the following pairings of stool appearance and cause does not match?
Stool specimens that appear ribbon-like are indicative of which condition?
A black tarry stool is indicative of:
Chemical screening tests performed on feces include all of the following except:
Secretory diarrhea is caused by:
The fecal osmotic gap is elevated in which disorder?
Microscopic examination of stools provides preliminary information as to the cause of diarrhea because:
The presence of fecal neutrophils would be expected with diarrhea caused by a rotavirus.
Large orange-red droplets seen on direct microscopic examination of stools mixed with Sudan III represent:
Microscopic examination of stools mixed with Sudan III and glacial acetic acid and then heated will show small orange-red droplets that represent:
When performing a microscopic stool examination for muscle fibers, the structures that should be counted:
A value of 85% fat retention would indicate:
Which of the following tests would not be indicative of steatorrhea?
Gum guaiac is preferred over ortho-tolidine for “occult” blood in mass screening tests because:
The term “occult” blood describes blood that:
What is the recommended number of samples that should be tested to confirm a negative occult blood result?
Which test is more sensitive to upper GI bleeding?
Annual testing for fecal occult blood has a high predictive value for the detection of:
Tests for the detection of “occult” blood rely on the:
What is the significance of an APT test that remains pink after addition of sodium hydroxide?
In the Van de Kamer method for quantitative fecal fat determinations, fecal lipids are:
A patient whose stool exhibits increased fats, undigested muscle fibers, and the inability to digest gelatin may have: