Rodent Surgery

Question 1

What are Sciuromorpha

Answer 1

• Ground squirels
• Arbivored suirels
• Prairie dogs
• Marmots
• Chipmunks
• Flying squirrels
• Dormice

Question 2

What is the most common abnormality n prairie dogs & rodents / histricomorphs?

Answer 2

Elodontomas

Question 3

What are Elodontomas?

Answer 3

Progressive accumulation of odontogenic tissue at incisor apices

Question 4

What are Elodontomas asociated with?

Answer 4

Incisor atrophy

Question 5

What can Elodontomas cause?

Answer 5

Respiratory compromise and death

Question 6

Ground squirrels & prarie dogs get …

Answer 6

Hepatic carcinomas

Question 7

What are hepatic carcinomas associated with ?

Answer 7

Species-specific hepadnavirus

Question 8

What other neoplasms eported?

Answer 8

• Hepatic adenoma
• Giant cellsarcoma
• Lipoma
• Myelolipoma
• SCC

Question 9

What are Hystricomorpha?

Answer 9

• Guinea pigs
• Chichillas
• Degus
• Porcupines
• Capybara

Question 10

Description of Hystricomorphs

Answer 10

• Arid climates
• Herbivores (hindgut fermenting, constat eruption of molars/ premolars)
• Anatomy similar across the suborder

Question 11

IVFT Broadly

Answer 11

• Catheterisation difficult
  -> Cephalic vein primarily
  -> Lateral saphenous in chichillas

Question 12

In critical patients intraossesous catheterisation in what sites?

Answer 12

• Femur (via trochanteric fossa)
• Tibia (via tibial crest)

Question 13

How to place IO catheter?

Answer 13

• Under GA & sterile, use sterile technique
• Spinal needle/ Hypodermic needle
• Prophylactic ABs

Question 14

Subcut fluids?

Answer 14

• Non citical patients
  -AVOID interscapular Fat Pad in GPs

Question 15

Oral fluids?

Answer 15

• Slow rehydration where GIT functional
• NG tube tolerated poorly

Question 16

What are the THree blood sampling sites for rodents?

Answer 16

• Jugular, cephalic, femoral, cranial VC

Question 17

Describe jugular sampling?

Answer 17

• Short, thick much s/c fat
• Difficult to visualise and restrain

Question 18

Describe Cephalic sampling?

Answer 18

• Small vol in GPs and chinchilla

Question 19

Femoral vein sampling?

Answer 19

• Distal femoral vein -> small but identifiable sample 0.2ml
• Blind technique proximally for larger volumes (palpable femoral artery pulse)

Question 20

Cranial VC sampling?

Answer 20

• Anaesthesia necessary
• Large volumes possible
• Useful in small species, debilitated animals

Question 21

Guinea Pig Description

Answer 21

• South American rodent
• Herbivores
• Social species
• reach sexual maturity at 4 weeks (single sex groups)

Question 22

Dental Disease (in GP)

Answer 22

• 1 incisor, 1 premolar, 3 molars in each quadrant
• Occlusal plane slanted at 30°

Question 23

GP dental dx can be associated with?

Answer 23

Hypovitaminosis C

Question 24

Signs of dental disease

Answer 24

• Reduced appetite
• Reduced grooming
• Weight loss
• change in faeces
• Drooling
• Ocular discharge uncommon (rabbits yes)

Question 25

Why to starve them a few hours before (GP) ?

Answer 25

Reduce cheek pouch food

Question 26

Assessment /Management of Dental dx

Answer 26

• Radiograph & coronal assessment
• Reshaping & shortening of crowns
• Gingival resection where necessary

Question 27

What to consider for mandibular pahtology ?

Answer 27

pulpectomy (removing the pulp)

Question 28

other tools for dental dx?

Answer 28

• Analgesia, supportive feeding, pophylactic vit C

Question 29

which pathology is rare due to rostrocaudal movements of the skull?

Answer 29

Primary incisor pathology

Question 30

seconday maloclusion results from?

Answer 30

cheek tooth elongation

Question 31

What is respiratory dx usually secondary to ?

Answer 31

immunosuppression (concurrent dx, poor husbandry, nutritional deficiency)

Question 32

GPs are susceptible to bacterial infectiosn when kept with other species T/F?

Answer 32

True -> Bordetella and pasteurella rom rabbits

Question 33

What can cause pneumonia in stressed GPs ?

Answer 33

Adenovirus