ALAT multiple choice deck

Question 1

Which statement is FALSE?
*Clipping the overgrown teeth corrects the problem of malocclusion
temporarily.
*Unlike other rodents, mice are able to vomit.
*Mouse urine is clear and yellow, with a strong odor.
*The incisors of mice grow continuously throughout their lives.

Answer 1

Unlike other rodents, mice are able to vomit.

Question 2

How long after mating can mucous plugs remain in the rodent’s vagina?
24 hours
6 hours
12 hours
36 hours

Answer 2

24 hours

Question 3

What is NOT an inbred strain of mice?
129
BALB/c
DBA
CD-1

Answer 3

CD-1

Question 4

Which statement is FALSE?
*If an investigator wants to perform cervical dislocation on unanesthetized mice, they can apply for permission from their IACUC.
*Verification of death is only required for mice that were euthanized with inhalant anesthetics.
*The most common euthanasia method for laboratory mice has historically been carbon dioxide asphyxiation.
*Some institutions require a second method of euthanasia to be performed on euthanized mice.

Answer 4

Verification of death is only required for mice that were euthanized with inhalant anesthetics.

Question 5

What is “tunnel handling”?

*Placing a mouse in a plastic cone before euthanasia
*Picking up mice with cupped hands
*Allowing a mouse to move between cages using a length of PVC tubing
*Letting a mouse enter an enclosed tube and moving the tube between cages

Answer 5

Letting a mouse enter an enclosed tube and moving the tube between cages

Question 6

In male mice, the anogenital distance is:
*shorter than female mice.
*longer than female mice.
*about the same as female mice.
*more variable than female mice.

Answer 6

Longer than female mice.

Question 7

In addition to having no hair, what is another characteristic of nude mice?
*They are naturally hypoglycemic.
*They have a deficiency in their immune system.
*They have ovarian cysts.
*They are diabetic.

Answer 7

They have a deficiency in their immune system.

Question 8

How long is the gestation period in non-lactating female mice?
16-18 days
19-21 days
10-14 days
22-26 days

Answer 8

19-21 days

Question 9

If a mouse’s dorsal pelvic bones are readily palpable, and the segmentation of its vertebral column is evident, it would be considered _______________, with a body condition score of _____.

Well-conditioned; 3
Emaciated; 1
Over conditioned; 4
Under-conditioned; 2

Answer 9

Under-conditioned; 2

Question 10

What is a sign that a mouse is dehydrated?

Piloerection
Skin tenting
Sunken eyes
All of the Above

Answer 10

All of the above