Test 5

Question 1

Which organism is the ascarid of dogs?

Answer 1

Toxocara canis

Question 2

Which organism is the ascarid of calves?

Answer 2

Toxocara vitulorum

Question 3

Which organism is a hookworm that parasitizes both dogs and cats?

Answer 3

Anculostoma braziliense

Question 4

Which organism is the lungworm of cattle?

Answer 4

Dictyocaulus viviparus

Question 5

Which organism is commonly referred to as the canine whipworm?

Answer 5

trichuris vulpis

Question 6

Eggs of which species may be present in urine or in feces contaminated with urine?

Answer 6

Pearsonema

Question 7

Infections with which organism are associated with the consumption of raw or undercooked pork?

Answer 7

Trichinella

Question 8

Which organism is a nematode that can form nodules in the esophageal wall of dogs and cats?

Answer 8

Spirocerca lupi

Question 9

What is the prepatent period of Dirofilaria immitis in dogs?

Answer 9

6 months

Question 10

Which organism is the intermediate host for Dirofilaria immitis?

Answer 10

Mosquito

Question 11

Which organism is the intermediate host for Dipyliduim caninum?

Answer 11

Flea

Question 12

Which organism is the intermediate host for Tania pisiformis?

Answer 12

Rabbit

Question 13

Which species of tapeworm causes hydatid cyst disease?

Answer 13

Echinococcus granulosus

Question 14

Which species of tapeworm parasitizes cattle, sheep, and goats?

Answer 14

Moniezia expansa

Question 15

Human beings become infected with the adult _____ tapeworm by eating poorly cooked beef

Answer 15

Taenia saginata

Question 16

Human beings become infected with the adult _______ tapeworm by eating poorly cooked pork?

Answer 16

Taenia solium

Question 17

Which rodent parasite is unique in that it is able to complete its life cycle within a single individual?

Answer 17

Hymenolepis diminuta

Question 18

Which term is used to describe the ciliated embryo of trematodes?

Answer 18

Miracidium

Question 19

Which organism is the “salmon-poisoning fluke” of dogs in the Pacific Northwest?

Answer 19

Nanophyetus salmincola

Question 20

Which organism is the “lung flue” of dogs?

Answer 20

Paragonimus kellicotti

Question 21

Which organism is the “liver fluke” of cattle, sheep, and other ruminants?

Answer 21

Fasciola hepatica

Question 22

Which organism is a common protozoal parasite that appears pear-shaped and dorsoventrally flattened, with four pairs of flagella?

Answer 22

Giardia

Question 23

Which species are extracellular hemoprotozoans?

Answer 23

Trypanosoma

Question 24

What is the vector that transmits Leishmania?

Answer 24

Fly

Question 25

Which parasite affects the reproductive tract of cattle?

Answer 25

Tritichomanas foetus

Question 26

Which parasite causes infectious enterohepatitis in turkeys?

Answer 26

Histomonass meleagridis

Question 27

Which species is a common coccidial parasite of kittens and puppies?

Answer 27

Cystoisospora

Question 28

For how long do cats infected with Toxoplasma gondii generally shed oocysts?

Answer 28

2 weeks

Question 29

How are most humans infected with Toxoplasma gondii?

Answer 29

eating undercooked meat

Question 30

The intermediate host for Babesia bigemina is what?

Answer 30

Boophilus ammilatus ticks

Question 31

Heavy infections with which organism can cause fatal bile duct blockage and liver failure, especially in young rabbits?

Answer 31

Eimeria stiedai

Question 32

Which flea species can serve as intermediate hosts for Dipylidium caninum?

Answer 32

Ctenocephalides felis and Ctenocephalides canis

Question 33

Organisms in the order _____ have mouthparts that adapted for biting

Answer 33

Mallophaga

Question 34

Organisms in the order ______ have mouthparts that are adapted for sucking?

Answer 34

Anoplura

Question 35

Which term refers to infestation by lice?

Answer 35

Pediculosis

Question 36

Which term refers to infestation by larval dipterans?

Answer 36

Myiasis

Question 37

Which term refers to infestation by mites or ticks?

Answer 37

Acariasis

Question 38

The common ear mite of dogs and cats is what?

Answer 38

Otodectes cynotis

Question 39

The mange mite of birds is what?

Answer 39

Knemidokoptes

Question 40

A common ear mite of rabbits is what?

Answer 40

Psoroptes

Question 41

Immunodeficiency of the host is necessary for infestation with _______ to be clinically apparent

Answer 41

Demodex

Question 42

The recovery of mites or lice that live primarily on the skin surface is best accomplished with what?

Answer 42

Cellophane tape prep

Question 43

The recovery of mites or lice that live primarily within hair follicles is best accomplished with what?

Answer 43

Deep skin scraping

Question 44

Specimens that cannot be examined within a few hours of excretion should be refrigerated or mixed with an equal part of what?

Answer 44

Formalin

Question 45

Parasites recovered from the digestive tract during necropsy may be preserved in _______ or 10% neutral buffered formalin for later identification

Answer 45

Alcohol

Question 46

A fecal smear should be what?

Answer 46

thin

Question 47

The visualization of protozoal trophozoites is best accomplished with what?

Answer 47

Direct fecal smear

Question 48

Eggs of ______ are rarely recovered with standard flotation due to the high specific gravity of the eggs

Answer 48

Flukes

Question 49

Sedimentation is generally used when infections with ______ are suspected

Answer 49

Flukes

Question 50

Which technique is usually used to recover larval parasite stages?

Answer 50

Baermann technique

Question 51

A concentration technique that is useful for the detection of protozoa and rickettsiae in white blood cells is what?

Answer 51

Buffy coat smear

Question 52

A method that is used to concentrate microfilaria and to help with the differentiation of Dirofilaria from Acanthocheilonema?

Answer 52

Modified Knott's test

Question 53

The American Heartworm Society currently recommends the use of _______ techniques during routine screening for Dirofilaria

Answer 53

Antigen-detection