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Derm > Lecture 7 > Flashcards

Lecture 7 Flashcards

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Dermatology Board Prep flashcards
1
Q

What is canine scabies caused by

A

Sarcoptes scabiei, lots of variations

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2
Q

Is scabies zoonotic

A

Yes!

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3
Q

Sarcoptes life cycle

A

3 weeks
Male mites live on skin surface
Females burrow into stratum corneum
Eggs, larva, nymphs, adult

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4
Q

How is sarcoptes transmitted

A

Direct contact

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5
Q

Pathgogenesis of pruritus

A

Hypersensitivity
Mechanic irritation
Saliva and feces are pruritic

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6
Q

Clin signs of scabies in dog

A

Intense pruritus in areas with little hair (ventral abdomen, pinnae, hocks, elbows)
Papules

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7
Q

Clin signs of chronic scabies in dog

A

Hyperpigmentation
Lymphadenopathy
Weight loss
Hyperglobulinemia

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8
Q

Norwegian scabies

A

Rare form
Thick crusts
Numerous mites but little pruritus
Seen in immunosuppressed animals

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9
Q

Scabies incognito

A

Well groomed animals
Intense pruritus
No lesions

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10
Q

Diagnoses of scabies

A

Superficial skin scraping
Clin signs
Response to treatment

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11
Q

Treatment of scabies

A 
Topical: 
Lime dip
Selamectim
Fipronil
Moxidectin

Oral:
Ivermectin
Milbemycin
Bravecto, nexgard, simparica

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12
Q

Why is phosmet no longer recommended

A

Frequent resistance

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13
Q

What causes feline scabies

A

Notoedres

Zoonotic, rare, 21 day life cycle

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14
Q

Clin signs of feline scabies

A

Extreme pruritus

Erythemia, crusting, papules, head and neck

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15
Q

Therapy for feline scabies

A

Lymdip
Revolution
Ivermectin
Bravecto

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16
Q

What is cheyletiella

A

Obligate parasite
“Walking dandruff”
Transient zoonosis

17
Q

Clin signs in dogs of cheyletiella

A

Usually puppies

Scaling and pruritus dorsally

18
Q

Diagnosis of cheyletiella

A

Combing
Superficial skin scraping
Cellophane tape impression

19
Q

Treatment of cheyletiella

A 
Pyrethrin
Lymedip
Ivermectin
Selamectin
Fipronil **not in rabbits
20
Q

What is pediculosis

A

Lice- biting or sucking

Not zoonotic

21
Q

Diagnosis of pediculosis

A

Physcial ID of lice and eggs

Brush or acetate tape impression

22
Q

Treatment of pediculosis

A

Clip coat of long haired animals
Pyrethrin
Fipronil
Lymdip

Derm (10 decks)

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