Rat/Mouse

Question 1

A group of mice/rats is called?

Answer 1

mischief

Question 2

Temp for rats and mouse

Answer 2

65-75

Question 3

humidity for rats and mouse

Answer 3

40-60

Question 4

mice and rats are primarily?

Answer 4

Nocturnal, consider dark places for housing

Question 5

Bedding needs to be __, ___, ___

Answer 5

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

Question 6

Whats the name of the cage for rats/mice

Answer 6

Solid bottom shoebox style cages with metal grates

Question 7

Rodent bedding needs to be at least?

Answer 7

1 inch deep

Question 8

How to clean cages (4)

Answer 8

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

Question 9

When to clean cages (2)

Answer 9

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

Question 10

More than ____ species of rodents

Answer 10

2,000

Question 11

Up to ___ of mammalian species are
rodents

Answer 11

40%

Question 12

identification (7)

Answer 12

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

Question 13

Gloves to avoid

Answer 13

Leptospira

Question 14

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 ___

Answer 14

base; distal tail

Question 15

Male

Answer 15

Anus is further from urethral

Question 16

Female

Answer 16

Anus is closer to urethral

Question 17

Medication can be given (7)

Answer 17

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

Question 18

Most meds must be

Answer 18

Diluted

Question 19

Small gauge needle ____

Answer 19

(22 or smaller)

Question 20

IV (4)

Answer 20

Saphenous, jugular, femoral, lateral tail (easiest)

Question 21

SQ

Answer 21

In scruff of neck or back

Question 22

IM

Answer 22

Difficult due to small muscle mass + sciatic
nerve

Question 23

IP

Answer 23

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

Question 24

Oral gavage

Answer 24

Quicker and most efficient than placing
meds in a water bottle

Question 25

Measure to the last rib for oral gavage rats/mice

Answer 25

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

Question 26

16-18G for ___ and___ needles for gavage

Answer 26

rats;20G

Question 27

Steps for oral gavage (3)

Answer 27

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

Question 28

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

Answer 28

6-7%; 1% of body weight

Question 29

For venipuncture a _____ is needed?

Answer 29

Small gauge needle or butterfly catheter – 25 or smaller

Question 30

Can also pull blood from (6)

Answer 30

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

Question 31

Trauma

Answer 31

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

Question 32

Barbering

Answer 32

Alopecia around head/muzzle/trunk from cage mates chewing

Question 33

Nutritional deficiencies

Answer 33

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

Question 34

Do not feed fresh ______, could be contaminated with bacteria

Answer 34

fruits or vegetables

Question 35

Ringtail

Answer 35

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

Question 36

Shoebox type cages ____

Answer 36

help keep humidity up

Question 37

Malocclusion

Answer 37

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

Question 38

Life span of rats

Answer 38

26-40 months

Question 39

Life span of mice

Answer 39

12-36 months

Question 40

Male Mice body weight

Answer 40

20-40

Question 41

Female Mice body weight

Answer 41

22-63 g

Question 42

Male rat body weight

Answer 42

267-500 g

Question 43

Female rat body weight

Answer 43

225-325 g

Question 44

Heart rate for rats

Answer 44

313-493

Question 45

Heart rate for mice

Answer 45

247-697

Question 46

RR for rats

Answer 46

71-146

Question 47

RR for mice

Answer 47

91-216

Question 48

Temp rats

Answer 48

37.7

Question 49

Temp mice

Answer 49

37.1

Question 50

Gestation rats

Answer 50

21-23 days

Question 51

Gestation mice

Answer 51

19-21

Question 52

Litter size rats

Answer 52

6-13

Question 53

Litter size mice

Answer 53

7-11