Chapter 14 Common Health Problems of Laboratoy Animals Flashcards Preview

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Flashcards in Chapter 14 Common Health Problems of Laboratoy Animals Deck (123)
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1

Wild-caught animals are likely to carry what kind of ectoparasites?

Mites, Ticks, Fleas

2

Fleas do not infect reptiles.

False

3

The use of antibiotics that are mainly effective against gram positive organisms should be avoided in guinea pigs.

True

4

What are signs of an animal with malocclusion?

-Wetness of the chin and forepaws
-Weight loss
-Excess salivation

5

An early sign of infestation with mites, ticks, and fleas is:

Excess scratching

6

What is the common name for a gastic trichobezoar?

Hairball

7

How is rabies most often transmitted?

Bite from an infected animal

8

Once clinical signs are observed, rabies is almost always fatal>

True

9

Among all animals used in research, which are at the greatest risk for contracting rabies?

Wild-caught animals

10

Treatment for diarrhea often includes anticholinergic and antisecretory drugs.

True

11

What clinical signs would suggest that young mice may have epizootic diarrhea of infant mice (EDIM)?

Yellow stains around the base of the tail

12

Which system is primarily affected by Mycoplasma pulmonis?

Respiratory

13

Idiopathic ulcerative dermatitis is caused by protozoan infestation.

False, the exact cause has not been determined

14

Heliobacter spp. are most commonly diagnosed with which technique?

Polymerase chain reaction.

15

All pinworm infections in rodents can be detected by the anal tape test.

False

16

What are the characteristics of epizootic diarrhea of infant mice (EDIM) that could affect research results?

Reduced weight gain
Greater susceptibility to other infections
Increased mortality

17

Which agent has been identified as the cause of scaly skin disease in athymic nude mice?

Corynebacterium bovis

18

An immunodeficient mouse that has contracted mouse noroviurs may have pneumonia, hepatits, and meningitis.

True

19

Infection with Mycoplasma pulmonis can result in a severe head tilt.

True

20

Mouse parvovirus causes severe diarrhea.

False, it is always subclinical

21

B57BL/6 and B57BL/10 mice are the strains most likely to be affected by idiopathic ulcerative dermatitis.

True

22

Although rarely seen anymore, Mycoplasma pulmonis can be exacerbated by stress due to overcrowding.

True

23

The most common method used to detect the presence of mouse hepatitis virus (MHV) in a colony is serology testing of sentinels and colony animals.

True

24

Adult mice infected with epizootic diarrhea of infant mice (EDIM) have watery, yellow stools.

False

25

Mice infected by the mouse hepatitis virus:

Can cause diarrhea and death in infant mice
The infection can contaminate cell lines and transplantable tumors
Most outbreaks are hard to recognize because the animals show no clear clinical signs

26

Sialodarcyoadenitis is which type of virus

Coronavirus

27

Characteristics of Mouse parvovirus:

It can remain present in the animal's tissues as a latent infection
It is not easily eliminated from a colony by cessation of breeding
Embryo rederivation is the preferred method of eliminating the virus from a colony.

28

The female Syphacia pinworm lays its eggs on the perineum: the Aspiculuris tetraptera lays its eggs in the animal's colon.

True

29

Mycoplasma pulmonis is rarely seen among laboratory rats.

True

30

Pinworm eggs are easy to destroy by chemicals or dessication.

False