Fecal Centrifugal Floatation/ Sedimentation

Question 1

What are the advantages of Centrifugal Floatation?

Answer 1

More efficient, recovering more ova in less time

Question 2

What type pf Centrifuge is used for Fecal Float?

Answer 2

Swing arm

Question 3

When is Fecal Sedimentation (water) used?

Answer 3

To detect ova that have a higher specific gravity than the common floatation solutions (for trematodes)

Question 4

When looking for Protozoa what are two forms you may be able to detect?

Answer 4

Cyst or motile trophozoite

Question 5

Which form of Protozoa would you expect to find in a patient with diarrhea?

Answer 5

Motile Trophozoite

Question 6

Direct smear with normal saline is the best technique for detecting motile Trophozoite (protozoa). What stains do you use for wet/ dry mounts?

Answer 6

Wet: Iodine
Dry: Diff quick

Question 7

What parasite can be detected with cellophane tape?

Answer 7

Oxyuris Equi: Pinworm Ova

Question 8

What technique can be used to detect larva in feces, soil, and tissues?

Answer 8

Baermann Technique