VTNE Parasitology Exam Questions and Answers

what number blade used for skin scraping - 10 this penetrates the intestinal wall an travels until it enters the submucosa - strongylus vulgaris clinical signs include horses with colic, fever, diarrhea, weight loss, death - strongylus vulgaris diagnosis for strongylus vulgaris - fecal flotation where does strongylus vulgaris reside in the body - large intestine sucking lice - anoplura biting lice - mallophaga lice eggs - nits mite with 8 legs that extend beyond the margins of their bodies, adult is oval - cheyletiella symptoms include dandruff scales, visible mites, itching, dermatitis, crusts, small spots - cheyletiella infection of this occurs when the host ingests dormant cysts found in contaminated water or by consuming food contaminated with feces that host the parasite - giardia once ingested this fastens itself to the surface of an animal's small intestines, these protozoans may also be found moving freely along the mucosal lining of an animal's intestines - giardia in this stage of giardia it is metabolically active and in the feeding stage, it possesses flagellum - trophozoite in this stage of giardia it is non-motile, they are infective and thrive in any moist environment for several months - cystic coccidian, spore forming single celled protozoan, small intestine - isospora when will flea eggs hatch - 1-6 days a pupa after this long is now an adult flea - 1-2 the flea can remain in a cocoon state for how long - 350 days the prepatent period, the time period from initial infestation to reproductive maturity for giardia is this long - 7-10 days diagnosis for giardia - direct smear zoonotic route of infection roundwoms - fecal oral zoonotic route of infection hookworms - larvae contact skin zoonotic route of infection tapeworms - ingest flea, rodent, uncooked meat zoonotic route of infection trichenella - uncooked meat intermediate host for babesia - ixodes spp intermediate host for leishmania spp - sand fly intermediate host for trypanosoma cruzi - assassin bug intermediate host for fasciola hepatica - snails intermediate host for paragonimus spp - crustaceans