6.5 Feces (Microscopic Examination)

Question 1

Test: Undigested muscle fibers

Method/Principle:
- Stained with _____ to visualize striations

Significance:
- ____ UMFs indicate pancreatic insufficiency

Answer 1

Alcoholic eosin

> 10

Question 2

Test: Qualitative fecal fats

Method/Principle:
- Examination of direct smear stained with s______ __

Significance:
- ____ Large orange-red droplets indicate malabsorption

Answer 2

Sudan III

60

Question 3

Test: Qualitative fecal fats

Method/Principle:
- Examination of smear heated with 36% _____ and S____ __

Significance:
- ____ Orange-red droplets (6-75um) indicate malabsorption

Answer 3

Acetic acid

Sudan III

100

Question 4

Test: Fecal neutrophils

Method/Principle:
- Stained with w___ _______ or d____ ______

Significance:
- ____ indicate invasive conditions

Answer 4

wet mount

Dried smear

> 3/hps

Question 5

In fecal neutrophils:

Stain for wet mount?

Answer 5

Methylene blue

Question 6

In fecal neutrophils:

Stain for Dried smear?

Answer 6

Wright’s stain