Fecal Exams (not done)
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9 Terms
Why do we conduct fecal exams?
To diagnosis parasitic infections where the diagnostic stage is passed in the feces
Prevent zoonotic parasites
The validity of the fecal exam is dependent on the BLAN, the type of BLANK, the BLANK of the flotation solution, and the BLANK of the person conducting the test
The validity of the fecal exam is dependent on the PROCEDURE, the type of FLOATATION SOLUTION, the SPECIFIC GRAVITY of the floatation solution, and the TRAINING of the person conducting the test
What are the two steps of a fecal exam?
Gross exam (characteristics of feces that should be recorded)
Microscopic exam
How should a microscopic fecal exam go?
Adequate sample
Conduct the proper test
Examine carefully and systematically
Develop standard procedures
If negative report as no parasites seen or observed
What is the least sensitive type of fecal exam?
Direct smear
How do you do a direct smear fecal exam?
Spread a small amount of feces on a glass slide and mix with saline or water then observe
When is a direct smear useful?
For parasitic protozoa that have motile trophozoite stages
What is the limitations of the direct smear?
Small sample size
If nothing is found it means little
It one or more is found it doesnt meant there arent more
Note 
Flashcards (20)