Fecal examination Flashcards
1
Q
qualitative or quantitive?
does my animal have parasites?
A
qualitative
2
Q
qualitative or quantitative
how severe is the infestation?
A
quantitative
3
Q
fecal parasites
A
helminths (worms)
protozoa
4
Q
collection of feces
A
- directly from the rectum
- fresh collection off the ground
5
Q
how do you handle fecal samples?
A
- fresh feces is best
- refrigeration if the sample is being held for more than a few hours after collection
- not refrigerated may result in the ova to hatch
- if frozen, ova may explode
6
Q
direct examination of fecal smear
A
- best for motile parasites
- crude exam
- false negatives
7
Q
concentration examinations
A
- best for detecting low levels of eggs
- flotation
- sedementation
8
Q
fecal flotation exam
A
the ability of the solution to allow less dense material (parasite elements) to rise to the top
- timing
- types of solution:
sugar
sodium nitrate
sodium chloride
zinc sulfate
- techniques
gravitational
centrifugation
9
Q
gravitational flotation methods
A
- Mcmaster method
- FLOTAC
- ovassay plus
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