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Lab: Animal Care > Rat/Mouse > Flashcards

Rat/Mouse Flashcards

1
Q

A group of mice/rats is called?

A

mischief

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2
Q

Temp for rats and mouse

A

65-75

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3
Q

humidity for rats and mouse

A

40-60

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4
Q

mice and rats are primarily?

A

Nocturnal, consider dark places for housing

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5
Q

Bedding needs to be __, ___, ___

A

soft, absorbent, and non-toxic (no cedar)

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6
Q

Whats the name of the cage for rats/mice

A

Solid bottom shoebox style cages with metal grates

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7
Q

Rodent bedding needs to be at least?

A

1 inch deep

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8
Q

How to clean cages (4)

A
  1. Put mice/rats in new cage that is
    already set up
  2. Remove all bedding material and put
    in trash
    3.Toss uneaten food
    4.Clean cage with soap and water
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9
Q

When to clean cages (2)

A
  1. Every 3 days
  2. When more than 25% of bedding is wet (when viewed from the bottom)
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10
Q

More than ____ species of rodents

A

2,000

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11
Q

Up to ___ of mammalian species are
rodents

A

40%

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12
Q

identification (7)

A

1.Cage cards
2. Non-toxic marker on fur
3. Shaving patches of hair
4.Record any natural markings in medical record
5.Tattoos of ear, tail, toe
6. Ear punching (notches or tags)
7. Microchips

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13
Q

Gloves to avoid

A

Leptospira

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14
Q

Grasp at ___of the tail to move from cage to cage. Do not suspend for long periods of time Can slough off skin by grasping ___

A

base; distal tail

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15
Q

Male

A

Anus is further from urethral

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16
Q

Female

A

Anus is closer to urethral

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17
Q

Medication can be given (7)

A

IV, IP, SQ, IM, IO, ID, and retro-orbital plexus

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18
Q

Most meds must be

A

Diluted

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19
Q

Small gauge needle ____

A

(22 or smaller)

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20
Q

IV (4)

A

Saphenous, jugular, femoral, lateral tail (easiest)

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21
Q

SQ

A

In scruff of neck or back

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22
Q

IM

A

Difficult due to small muscle mass + sciatic
nerve

23
Q

IP

A

Easily done, tilt animal to avoid cecum, can add larger volumes

24
Q

Oral gavage

A

Quicker and most efficient than placing
meds in a water bottle

25
Q

Measure to the last rib for oral gavage rats/mice

A

(2-3” in rats, 1.5” for mice typically

26
Q

16-18G for ___ and___ needles for gavage

A

rats;20G

27
Q

Steps for oral gavage (3)

A

Slide gavage ball along palate until reaching
the esophagus, allow animal to swallow
then continue advancing slowly. Should be able to pass easily. If animal starts to choke or cough, restart

28
Q

Blood volume for rodents is apx. ___ of body
weight, do not take more than ___of body weight
in blood at a time, less in sick animals

A

6-7%; 1% of body weight

29
Q

For venipuncture a _____ is needed?

A

Small gauge needle or butterfly catheter – 25 or
smaller

30
Q

Can also pull blood from (6)

A

tail arteries, saphenous vein, femoral vein, jugular vein, cranial vena cava, intracardial, etc. but must be done under anesthesia.

31
Q

Trauma

A

Fighting, males or females housed together +/-
with young

32
Q

Barbering

A

Alopecia around head/muzzle/trunk from cage
mates chewing

33
Q

Nutritional deficiencies

A

Feed commercial rat/mouse pellet, use within 6 months of purchase

34
Q

Do not feed fresh ______, could be
contaminated with bacteria

A

fruits or vegetables

35
Q

Ringtail

A

Common in rats that have been kept in low
humidity. Causes annular constrictions in tail, leads to sloughing, edema, necrosis.

36
Q

Shoebox type cages ____

A

help keep humidity up

37
Q

Malocclusion

A

Caused by continuous growth of incisors. Soft
diets or mis-alignment of jaw can lead to tooth overgrowth.

38
Q

Life span of rats

A

26-40 months

39
Q

Life span of mice

A

12-36 months

40
Q

Male Mice body weight

A

20-40

41
Q

Female Mice body weight

A

22-63 g

42
Q

Male rat body weight

A

267-500 g

43
Q

Female rat body weight

A

225-325 g

44
Q

Heart rate for rats

A

313-493

45
Q

Heart rate for mice

A

247-697

46
Q

RR for rats

A

71-146

47
Q

RR for mice

A

91-216

48
Q

Temp rats

A

37.7

49
Q

Temp mice

A

37.1

50
Q

Gestation rats

A

21-23 days

51
Q

Gestation mice

A

19-21

52
Q

Litter size rats

A

6-13

53
Q

Litter size mice

A

7-11

Lab: Animal Care (2 decks)

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