Pruritic ectoparasitic disease

Question 1

describe flea allergic dermatitis

Answer 1

Pruritus associated with hypersensitivity to salivary proteins of flea (Type I +/or Type IV)
Leads to self trauma by pet

Question 2

where are fleas generally found on the dog

Answer 2

caudal half of the body (tail base, thighs, inguinal area)
dorsum

Question 3

Describe how to demonstrate the presence of fleas on animal

Answer 3

Flea comb
Vigorous coat brushing – examine debris on moistened paper –> red/brown tinge

Therefore failure to detect fleas - is unrealiable

Question 4

What is the best diagnostic test for fleas

Answer 4

response to therapy

Question 5

what part of the flea lifecycle occurs on the animal

Answer 5

only the adult part

Question 6

is intradermal testing useful for FAD

Answer 6

it tests for hypersensitivity, not infestation

it is prone to false positive reactions

Question 7

Descrube how can we treat fleas

Answer 7

isoxazoline for all in contact animals and treat the environment

Question 8

what is the chewing lice in cats

Answer 8

Felicola species

Question 9

chewing lice in dogs

Answer 9

Trichodectes canis

Question 10

sucking lice in dogs

Answer 10

Linognathus setosus

Question 11

List the classical signs of lice infestation

Answer 11

often asymptomatic - may see poor coat, scaling, papulea, crusts, variable pruritus
Heavy infestation –> anaesmia, lethargy

Question 12

How do we diagnose lice infestation

Answer 12

coat combing/ brushing or hair plucks (for eggs)

Question 13

Describe how to treat lice

Answer 13

selamectin/fipronil/imidacloprid - trea animal and all in-contacts

environmental cleaning

Question 14

what does sarcoptes look like

Answer 14

round mite with 8 short legs

Question 15

List the classical signs of sarcoptes

Answer 15

intense pruritus
papules and crusts esp pinnal margins, elbows, hocks, sternum, other areas can be affected

Question 16

Describe how to diagnose Sarcoptes

Answer 16

superficial skin scraping
IgG serology (ELISA)
Therapeutic trial - justified if disease suspected

Question 17

Describe how we can treat sarcoptes

Answer 17

sarolaner, afocolaner, fluralaner- animal and in contacts
Treat environment +cleaning

Question 18

what does cheylitiella look like

Answer 18

heart-shaped body with 8 long legs

Question 19

List the classical clinical signs of cheylitiella

Answer 19

pruritus and scale especially dorsal trunck

Question 20

DEscribe how to diagnose cheylitiella

Answer 20

superficial skin scraping
microscopy of scale from combing
unstained acetate tape strip on the skin
trichogram for eggs

False -ves common- so trial treatment if suspect

Question 21

List the licensed teeatments for cheylitiella

Answer 21

There are none

Question 22

List 3 products that are effective against cheylitiella

Answer 22

isoxazolines
selamectin
moxidectin

Question 23

List the classic sign of otodectes

Answer 23

ear irritation
head shaking
excessive ear wax
occasional irritationof face, body

Question 24

Decsribe how to diagnose otodectes

Answer 24

see mites on otoscopy
see mites/eggs on microscope or cerumen

Question 25

Describe how to treat otodectes

Answer 25

selected isoxazolines (sarolaner, fluralaner, afoxolaner) / selamectin/ moxidectin systemically or can use acricidal ear drops

Question 26

what does neotrombicula look like

Answer 26

orange parasite, visible to the naked eye, 6 long legs, 2 body parts

Question 27

Lst the clinical signs of neotrombicula

Answer 27

papules, crusts, pruritus- especially interdigital spaces, pinnae, ventral abdomen

Question 28

are there any licensed products for neotrombicula

Answer 28

No

Question 29

Describe how to treat neotrombicula

Answer 29

fipronil spray every 2 weeks selacmectin spot-on isoxazolines

Question 30

what do demodex look like

Answer 30

long bodies mites- cigares

Question 31

List the two most canine demodex mites

Answer 31

D. canis and D. injai

Question 32

List the classic demodicosis clinical signs

Answer 32

intense pruritus especially on the face and dorsum, often greasy coat with mild hair loss

Question 33

List two feline demodex mites

Answer 33

D. cati and D. gatoi

Question 34

List the classic D. cati clinical signs

Answer 34

erythema papules pustules alopecia

Question 35

List classic D. gatoi clinical signs

Answer 35

over-grooming, pruritus, alopecia, scaling, erythema

Question 36

Describe the treatment for feline demidicosis

Answer 36

sarolaner, flurolaner

Question 37

which demodex needs treatment of in contacts as well

Answer 37

D. gatoi

Question 38

A 4yr Boxer presents with dorsal pruritus and scale. What are your top two differential diagnoses

Answer 38

Flea allergic dermatitis cheyletiellosis

Question 39

How diagnose Neotrombicula autumnalis

Answer 39

see orange dots with naked eye superficial skin scrape into liquid paraffin if microscopy needed

Question 40

How to diagnose demodex injai and canis

Answer 40

deep skin scrapings hair plucks