Microscopic Screening Flashcards
seen in the feces in conditions that affect the intestinal mucosa, such as ulcerative colitis and bacterial dysentery
Leukocytes, primarily neutrophils
Microscopic screening is performed as a preliminary test to determine whether diarrhea is being caused by
invasive bacterial pathogen and enteroinvasive
Dried preparations stained with either _ stains provide permanent slides for evaluation
Wright’s or Gram
In an examination of preparations under high power, as few as three neutrophils per high-power field can be indicative of an
invasive condition
undigested striated muscle fibers can be helpful in diagnosing and monitoring patients with
pancreatic insufficiency (cystic fibrosis)
Increased amounts of striated fibers may also be seen in _ and _
biliary obstruction and gastrocolic fistulas
conditions that can be evaluated when undigested striated muscle fiber is tested:
pancreatic insufficiency (cystic fibrosis)
biliary obstruction
gastrocolic fistulas
slides are prepared by emulsifying and small amount of stool in _
10% alcoholic eosin
slides are prepared by emulsifying and small amount of stool in _
10% alcoholic eosin
enhances the muscle fiber striations
10% alcoholic eosin
presence of more than 10 undigested fibers is reported as
INCEASED
lipids included in the microscopic examination
neutral fats (trigly)
fatty acid salts (soap)
fatty acids
cholesterol
stains can be used in observing fecal fats;
most routinely used is:
Sudan III, Sudan IV, or Oil red O
Sudan III
soaps, fatty acids, and cholesterols requires
heating
staining procedure consist of two parts
neutral fat and split fat stain
