Clinical Procedures - Internal and External Parasitology Flashcards
Rickettsia are transmitted how?
Blood sucking vectors - arthropods
Anaplasma marginale found where?
As a single dot at margin of RBC
Ehrlichia canis found where?
In WBC
Anaplasma marginale type of parasite?
Rickettsia
Ehrlichia canis type of parasite?
Rickettsia
Giardia canis type of parasite?
Protozoa - intestinal
Coccidia type of parasite?
Protozoa - intestinal
Babesia type of parasite?
Protozoa - blood
Giardia found where?
Contaminated water.
Hard to find on fecal float, use direct smear with iodine or other stain
Coccidia found where?
Pet stores, puppy mills, shelters, overcrowded situations
Babesia cause what?
Hemolytic anemia
How to diagnose babesia?
Differential smear
How to diagnose trematodes?
Sedimentation not fecal float. They are heavy!
Trematode egg appearance?
Large, oval, single operculum
Nanophytes salmoncola causes what?
Salmon poisoning in dogs and cats - carries neoricketsia helmintheca
Fasciola hepatica is what?
Liver flukes found in cattle
Paragonimus kellicotti is what?
Lung flukes found in cats and dogs
Trematodes have what intermediate hosts?
Larval stage is found in snails and fish
Cestodes have what intermediate hosts?
Larval stage is found athropods, fish, and mammals
Dipylidium caninum is what?
Flea tapeworm of cats and dogs
Taenia pisiformis is what?
Rabbit/rodent tapeworm of cats and dogs
Examples of ascarids?
Toxocara Canis/Cati and Toxascaris leonina
How are ascarids contracted?
Enviromental, in utero, transmammary
Symptoms of ascarid infection?
Vomiting, diarrhea, coughing, gas, distended abdomen, seizures if CNS involvement
Ascarid infections in humans can cause?
Ocular Larval Migrans
Visceral Larval Migrans
Hookworm examples?
Ancylostoma caninum (dogs) Uncinaria stenoceohala (dogs and cats)
How are hookworms transmitted?
Enviromental
Transmammary
Cutaneous larval migrans
Symptoms of hookworm infection?
Listless, bloody diarrhea, anemia
How to identify hookworms?
Examine within 30 minutes. Large oval eggs, bubbling granular insides
How to identify whipworms?
Football shaped eggs, double operculum - sporadic egg shedder
Symptoms of whipworms?
Blood and mucus in stool, frequent bowel movements
Species of whipworms in dogs?
Trichuris vulpis
Nematode found in blood?
Dirofilaria immitus
Diagnosis of nematode larva is done by what?
Baerrmann techniques
Examples of nematodes found by baerrmann technique?
Strongyloides stercoralis - thread worm in dog/cat (infected by larva)
Aelurostrongylus abstrusus - lungworm in cats.
How to identify and treat lung worm in cats?
Identify with tracheal wash/mucus secretions - larvae with kink in tail
Treat with panacur and ivermectin
Fleas are vectors for what?
Bubonic plague
Intermediate host for dipylidium caninum
Fleas species name?
Ctenocephalides felis (dogs and cats)
Ticks are vectors for what?
Variety of bacterial, viral, rickettsial, and protozoal diseases. Including rocky mountain spotted fever and Lyme Disease
Tick life cycle includes?
Egg, 6 legged nymph, and 8 legged adult
Hard dog tick family?
Ixodidae
Soft dog tick family?
Argasidae
Ixodidae examples?
Rhipicephalus sanguines - brown dog tick
Dermacentor variabilis - american dog tick
Argasidae examples?
Otobius megnini - spinose ear tick (large animals)
Sucking louse family?
Family anoplura
Biting louse family?
Family mallophaga
Anoplura examples?
Linognathus setosus - dogs
Hematospinus asini - horse
Pthirus pubis - crabs louse
Mallophaga examples?
Trichodectes canis - dogs
Felicola subrostrata - cats
Daemilinea caprae - goats
Cuterebra Flies infect what species?
Rabbits and cat most commonly. Dogs occasionally.
Trombicula mites are known as?
Chiggers - only larva are parasitic
Cheyletiella sp. are known as?
Walking dandruff mite - causes scaling and crusting
Family demodex life cycle?
Egg, 6 legged larva, 8 legged nymph, adult
Clinical signs of demodicosis?
Patchy or diffuse demodicosis with secondary bacterial infections
Family sarcoptidae includes what species?
Sarcoptes scabiei canis and Notoedres cati
Clinical signs of sarcoptic mange?
Scaling, crusting, self-trauma,
ears, lateral elbows, ventral abdomen harbors mites
Family psoroptidae includes what species?
Psoroptes sp.
Chorioptes sp.
Otodectes sp.
Otodectes cynotis clinical signs
Otitis externa
Irritation
Dark, dry crusting