Lecture 2

Question 1

Most common external parasite

Answer 1

Flea

Question 2

Most common skin disease

Answer 2

FAD

Question 3

Most common flea in dogs and cats

Answer 3

Ctenocephalides felis

Question 4

Avian stick tight flea

Answer 4

Echidnophagia gallinacea

Exposure to birds or poultry farms; seen on margin of pinnae

Question 5

Diseases of fleas

Answer 5

Plague, murine typhus, tularemia, dipylidium caninum, cat scratch fever

Question 6

Length of flea life cycle

Answer 6

3 wks

Question 7

Eggs- where at? Resistant to what?

Answer 7

Laid after bloodmeal into environment

Resistant to everything except IGR

Question 8

Larva- where at? What do they like? What do they eat?

Answer 8

Environment
Like dark warm areas
Eat flea dirt

Question 9

Most resistant stage of flea

Answer 9

Cocoon/pupa

Can be dormant for months

Question 10

What makes pupa come out

Answer 10

Vibrations

Question 11

Predisposing factors to FAD

Answer 11

Lack of exposure at young age
Intermittent exposure
Small amounts
Atopy

Question 12

Hypersensitivity of FAD

Answer 12

Type I and IV

Cutaneous basophil hypersensitivity

Question 13

Primary lesion of FAD

Answer 13

Papule

Question 14

What will you see with FAD

Answer 14

Self trauma and absence of fleas usually

Question 15

Three most pruritic diseases in dogs

Answer 15

FAD, food, scabies

Question 16

Where are FAD lesions usually

Answer 16

Lower half of body- tail, perineum, hind legs, lower back

Question 17

What is a common sequelae to FAD

Answer 17

Secondary staph infection

Question 18

What else will cats with FAD have

Answer 18

Miliary dermatitis
Feline symmetrical alopecia
Eosinophilic granuloma complex

Question 19

Diagnoses of FAD

Answer 19

Clin signs and r/o

IDST not usually recommended
Histopath not specific

Positive response to elimination of fleas is huge

Question 20

FAD therapy

Answer 20

Kill fleas
Treat pyoderma
Antipruritic therapy

Steroids +/-
Antihistamines not useful prob
No vax