Learn About Parasitology

24 Questions | By Parasitegenius | Updated: Oct 24, 2017 | Attempts: 115

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Questions and Answers

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
Correct Answer
A. Anemia
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
Correct Answer
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
Correct Answer
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
Correct Answer
B. Draschia megastoma
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
Correct Answer
C. 6-9 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
Correct Answer
A. Cats
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
Correct Answer
C. Serologic tests that detect antigens from female worms
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
Correct Answer
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
Correct Answer
C. Physaloptera
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
Correct Answer
A. Nutrient availability and atmospheric levels of oxygen
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
Correct Answer
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
Correct Answer
B. Ingestion of an egg containing an infective larva
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
Correct Answer
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
Correct Answer
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
Correct Answer
B. Oxyruis equi
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
Correct Answer
A. Ascaris lumbricoides
17.

Intermediate host for Aleurostrongylus abstrusus:
- A.
  
  Birds
- B.
  
  Crickets
- C.
  
  Frogs
- D.
  
  Lizards
- E.
  
  Slugs
Correct Answer
D. Lizards
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
Correct Answer
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
Correct Answer
B. Metastronglylus
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
Correct Answer
A. Ancylostoma caninum
21.

What is the intermediate host for Acanthocheilonema reconditum?
- A.
  
  Black fly
- B.
  
  Flea
- C.
  
  Louse
- D.
  
  Mosquito
- E.
  
  Tick
Correct Answer
B. Flea
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
Correct Answer
A. Ancylostoma tubaeforme
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
Correct Answer
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
Correct Answer
D. Urine

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Current Version
Oct 24, 2017

Quiz Edited by
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Feb 03, 2010

Quiz Created by
Parasitegenius

Learn About Parasitology

What clinical sign would you expect in a goat heavily infected with Haemonchus contortus?

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.

Anatomically speaking, where in the horse do juveniles cyathostomins (small strongyles) encyst?

Parasite that can cause respiratory distress and nasal discharge in foals:

What is the prepatent period for Dirofilaria immitis infection in dogs?

Pinworms are common in many animals. However, what animals are NOT infected with pinworms?

What diagnostic tests are recommended for determining infection with Dirofilaria immitis in dogs?

Vertebrate host in which you are most likely to find first-stage larvae of Parelaphostrongylus tenuis:

Parasite that infects the stomach of dogs and may cause vomiting:

Two main factors that affect the development and survival of free-living stages of trichostrongylid nematodes:

Approximately how long is the prepatent period of Strongylus vulgaris in horses?

How do humans become infected with Toxocara canis?

Hookworm of dogs and cats that is adapted to cold environments:

Transmission by which route can be used to explain respiratory disease in a 3-day old pup due to infection with Toxocara canis?

Heavy infections with what parasite can cause abdominal pain and pruritis ani in horses?

. Parasitic worm that is morphologically identical to Ascaris suum:

Intermediate host for Aleurostrongylus abstrusus:

Geographic location in the United States where Angiostrongylus cantonesis in rats is known to occur:

Lungworm of swine that can be diagnosed by finding a thick-shelled eggs that are larvated (i.e., embryonated) when passed in fresh feces:

Which of the following canine parasites is known to cause visceral larva migrans (VLM) in humans?

What is the intermediate host for Acanthocheilonema reconditum?

Nematode parasite of cats most likely to cause excess mucus production, catarrhal gastritis, and vomiting.

Parasitic nematode that burrows its thin anterior end in the mucosa of the cecum and colon of dogs:

Sample you would collect and test if you suspected infection with Dioctophyme renale: