Learn About Parasitology
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Trial run using practice questions
- 1.What clinical sign would you expect in a goat heavily infected with Haemonchus contortus?
- A.
Anemia
- B.
Ataxia
- C.
Diarrhea
- D.
Labored breathing
- E.
Paralysis
- 2.Term for a potential host in which there is no required development of the immature parasite but the organism remains infective for the definitive host.
- A.
Accidental host
- B.
Definitive host
- C.
Incidental host
- D.
Intermediate host
- E.
Paratenic host
- 3.Anatomically speaking, where in the horse do juveniles cyathostomins (small strongyles) encyst?
- A.
Cranial mesenteric artery
- B.
Liver and pancreas
- C.
Lining of the stomach
- D.
Mucus membranes of the cecum and colon
- E.
Mucus membranes of the small intestine
- 4.Parasite that can cause respiratory distress and nasal discharge in foals:
- A.
Dictyocaulus viviparous
- B.
Draschia megastoma
- C.
Parascaris equorum
- D.
. Toxocara vitulorum
- E.
Strongylus vulgaris
- 5.What is the prepatent period for Dirofilaria immitis infection in dogs?
- A.
2-3 months
- B.
4-5 months
- C.
6-9 months
- D.
10-12 months
- E.
More than 12 months
- 6.Pinworms are common in many animals. However, what animals are NOT infected with pinworms?
- A.
Cats
- B.
Horses
- C.
Humans
- D.
Opossums
- E.
Turtles
- 7.What diagnostic tests are recommended for determining infection with Dirofilaria immitis in dogs?
- A.
Difil to detect microfilariae
- B.
Modified Knott’s to detect microfilariae
- C.
Serologic tests that detect antigens from female worms
- D.
Serologic tests that detect antigens from male worms
- E.
Serologic tests that detect antigens from microfilariae
- 8.Vertebrate host in which you are most likely to find first-stage larvae of Parelaphostrongylus tenuis:
- A.
Caribou
- B.
Goat
- C.
Moose
- D.
Sheep
- E.
White tailed deer
- 9.Parasite that infects the stomach of dogs and may cause vomiting:
- A.
Gongylonema
- B.
Habronema
- C.
Physaloptera
- D.
Thelazia
- E.
Toxascaris
- 10.Two main factors that affect the development and survival of free-living stages of trichostrongylid nematodes:
- A.
Nutrient availability and atmospheric levels of oxygen
- B.
Nutrient availability and moisture
- C.
Temperature and atmospheric levels of carbon dioxide
- D.
Temperature and atmospheric levels of oxygen
- E.
Temperature and moisture
- 11.Approximately how long is the prepatent period of Strongylus vulgaris in horses?
- A.
1 month
- B.
2-3 months
- C.
4-5 months
- D.
6-8 months
- E.
11-12 months
- 12.How do humans become infected with Toxocara canis?
- A.
Bite of an infected mosquito
- B.
Ingestion of an egg containing an infective larva
- C.
Penetration of an infective larva
- D.
Transmammary
- E.
Transplacental
- 13.Hookworm of dogs and cats that is adapted to cold environments:
- A.
Ancylostoma caninum
- B.
Ancylostoma tubaeforme
- C.
Ancylostoma braziliense
- D.
Necator americanus
- E.
Uncinaria stenocephala
- 14.Transmission by which route can be used to explain respiratory disease in a 3-day old pup due to infection with Toxocara canis?
- A.
Bite of an infected mosquito
- B.
Ingestion of an egg containing an infective larva
- C.
Penetration of an infective larva
- D.
Transmammary
- E.
Transplacental
- 15.Heavy infections with what parasite can cause abdominal pain and pruritis ani in horses?
- A.
Drashia megastoma
- B.
Oxyruis equi
- C.
Parascaris equorum
- D.
Strongylus vulgaris
- E.
Trichostrongylus axei
- 16.. Parasitic worm that is morphologically identical to Ascaris suum:
- A.
Ascaris lumbricoides
- B.
Baylisascaris procyonis
- C.
Parascaris equorum
- D.
Toxascaris leonina
- E.
Toxocara cati
- 17.Intermediate host for Aleurostrongylus abstrusus:
- A.
Birds
- B.
Crickets
- C.
Frogs
- D.
Lizards
- E.
Slugs
- 18.Geographic location in the United States where Angiostrongylus cantonesis in rats is known to occur:
- A.
Atlanta, Georgia
- B.
Memphis, Tennessee
- C.
Miami, Florida
- D.
New Orleans, Louisiana
- E.
Seattle, Washington
- 19.Lungworm of swine that can be diagnosed by finding a thick-shelled eggs that are larvated (i.e., embryonated) when passed in fresh feces:
- A.
Ascaris suum
- B.
Metastronglylus
- C.
Oesophagostomum
- D.
Stephanurus dentatus
- E.
Trichinella spiralis
- 20.Which of the following canine parasites is known to cause visceral larva migrans (VLM) in humans?
- A.
Ancylostoma caninum
- B.
Enerobius vermicularis
- C.
Physaloptera
- D.
Toxascaris leonina
- E.
Toxocara canis
- 21.What is the intermediate host for Acanthocheilonema reconditum?
- A.
Black fly
- B.
Flea
- C.
Louse
- D.
Mosquito
- E.
Tick
- 22.Nematode parasite of cats most likely to cause excess mucus production, catarrhal gastritis, and vomiting.
- A.
Ancylostoma tubaeforme
- B.
Ollulanus tricuspis
- C.
Toxascaris leonina
- D.
Trichinella spiralis
- E.
Trichuris campanula
- 23.Parasitic nematode that burrows its thin anterior end in the mucosa of the cecum and colon of dogs:
- A.
Ancylostoma caninum
- B.
Strongylus canis
- C.
Toxascaris leonina
- D.
Toxocara canis
- E.
Trichuris vulpis
- 24.Sample you would collect and test if you suspected infection with Dioctophyme renale:
- A.
Feces
- B.
Spleen
- C.
Striated muscle
- D.
Urine
- E.
Vomitus
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