PARA Flashcards
parasite that can demonstrate intense eosinophilia
Trichinella spiralis
manner of examination for amoebiasis and giardiasis
3 specimens, 1 every other day in 10 days
stool to preservative ratio
1:3
t or f. we can freeze stool spx to preserve it
false
5% formalin is used for:
protozoans
10% formalin is used for:
cysts, helminth eggs, larvae
advantage of this preservative is that it has long shelf life
formalin
disadvantage of this preservative is that it contains mercury
schaudinn’s solution
suitable for permanent staining (trichrome hematoxylin); combined with schaudinn’s
polyvinyl alcohol
recommended procedure for light infections
concentration techniques
parasite has higher specific gravity, sinks
sedimentation
parasite has lower specific gravity, floats
flotation
reagent that dissolves albuminous material
40% hcl
dissolves neutral fats in stool
ether
best for coccidian oocyst
sugar flotation technique