Exotics Top Topics - Top 10 Guinea Pig Diseases Part 2 Flashcards

1
Q

what are the 2 types of ascariasis in guinea pigs?

A

fur mite & burrowing mite

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2
Q

what is the classic case presentation of a guinea pig with fur mites?

A

asymptomatic, scruffy coat, & may see alopecia/pruritus

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3
Q

what is the classic case presentation of a guinea pig with burrowing mites?

A

very pruritic & hypersensitive to touch - handling may trigger seizures

excoriations, hyperkeratosis, & alopecia

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4
Q

what is the etiology of fur mites in guinea pigs? how are they diagnosed?

A

cheirodiscoides caviae - fur taping

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5
Q

what is the etiology of burrowing mites in guinea pigs? how are they diagnosed?

A

trixacarus caviae

skin scraping - difficult to find

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6
Q

how are both types of fur motes treated in guinea pigs?

A

selamectin, bathes, grooming, & treat the environment

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7
Q

what is another name for burrowing mites in guinea pigs? is it zoonotic?

A

sellnick mite

zoonotic but human infections are rare

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8
Q

T/F: fur mites of guinea pigs can be difficult to eradicate

A

true

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9
Q

what is lumps in guinea pigs?

A

cervical lymphadenitis

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10
Q

what is the classic case of lumps in guinea pigs? what are some sequelae?

A

unilateral cervical swellings that can rupture with caseous pus, dysphagia, & anorexia

can spread & cause metritis/pneumonia/etc

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11
Q

what is the etiology of lumps in guinea pigs?

A

usually streptococcus equi sub species zooepidemicus - salmonella also possible

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12
Q

how is lumps diagnosed?

A

FNA & culture/sensitivity

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13
Q

what antibiotics are safe to use in guinea pigs that you can use to treat lumps? what other things are used for treatment?

A

ETC - enrofloxacin, trimethoprim sulfa, & chloramphenicol safe to use!!!

lymphadenectomy

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14
Q

what is the prognosis of lumps? is it zoonotic?

A

guarded - YES ZOONOTIC

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15
Q

how does a guinea pig get lumps?

A

bacteria enter through a breach in oral mucosa (malocclusion) - can occur as epidemics in labs or pet shops

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16
Q

what is the classic case presentation of ovarian cysts in guinea pigs?

A

middle age/older sow, bilateral/symmetrical, non-pruritic alopecia usually over the flanks, decreased reproduction, endometritis/mucometra, +/- abdominal distension, anorexia, & pain

17
Q

how are ovarian cysts in guinea pigs diagnosed?

A

palpable abdominal mass, rads, & u/s

18
Q

how are ovarian cysts in guinea pigs treated?

A

OHE

19
Q

what is the prognosis for a guinea pig with ovarian cysts? are they often clinical with this disease?

A

good prognosis with OHE

often subclinical

20
Q

T/F: in guinea pigs with ovarian cysts, we frequently see multiple cysts up to 4cm in size

A

true

21
Q

what is the classic case presentation of leukemia/lymphosarcoma in guinea pigs?

A

anorexia, lethargy, unkempt coat, pale mucus membranes, lymphadenomegaly, splenomegaly, & hepatomegaly

22
Q

what is the etiology of leukemia/lymphosarcoma in guinea pigs? how is it diagnosed?

A

type C retrovirus

on CBC will see leukocytosis & leukemia cells

FNA cytology

23
Q

how is leukemia/lymphoma in guinea pigs treated?

A

complete surgical excision, but not always possible or practical

24
Q

what is the most common neoplasia in guinea pigs? what is the prognosis of it?

A

leukemia/lymphoma - very poor prognosis, 2-5 week survival

25
Q

what is the classic case presentation of pregnancy toxemia in guinea pigs?

A

gravid sow, variable signs including depression to acute death

26
Q

what are the 2 forms of pregnancy toxemia in guinea pigs?

A

ketosis - negative energy balance (ketone breath, lethargy, dyspnea, paralysis, & death)

ischemia - from aortic compression by large & bulky fetus/uterus

27
Q

how is pregnancy toxemia of guinea pigs diagnosed?

A

physical exam, large gravid uterus seen on rads, & on bloodwork, hypoglycemia & ketosis

28
Q

how is pregnancy toxemia treated in guinea pigs?

A

aggressive fluid therapy, dextrose, OHE or c-section

29
Q

how is pregnancy toxemia of guinea pigs prevented?

A

avoid stress, avoid obesity, & provide adequate nutrition/exercise

30
Q

what is the prognosis for pregnancy toxemia in guinea pigs?

A

usually poor by the time of presentation

31
Q

what is the classic case presentation of dystocia/still births in guinea pigs?

A

primiparous female over 6 months of age, obese sow, continuous straining for more than 20 minutes/intermittent straining over 2 hours, inadequate separation of symphysis pubis, & bloody/brown vulvar discharge

32
Q

how is dystocia/still births in guinea pigs diagnosed?

A

physical exam & digital palpation of symphysis pubis reveals little to no separation

33
Q

what must be true for oxytocin to be given to a guinea pig with dystocia?

A

ONLY if the separation of the symphysis pubis is at least the width of the index finger (~0.75 inches or 2 cm)

34
Q

how is dystocia in guinea pigs treated?

A

oxytocin if requirements are met or emergency c-section

35
Q

how is dystocia in guinea pigs prevented?

A

sows intended for breeding should be bred before 6 months to prevent fusion of symphysis pubis

36
Q

what can cause dystocia/still births in guinea pigs?

A

can be from large/malformed fetuses, large litters, or abnormal fetal presentation

37
Q

T/F: boars housed with sows that have a fused symphysis pubis should have an orchidectomy

A

true

38
Q
A