Lecture 10: Ears Flashcards
1
Q
Why are ear infections in cats less common?
A
Microclimate less conducive to infection
2
Q
What are the two parts of the tympanic membrane?
A
Pars tensa (thin) and pars flaccida (dorsal, vascular).
3
Q
What can bulging of pars flaccida be mistaken for?
A
Neoplasia
4
Q
What do chronic changes to the ear canal look like?
A
Hyperplasia of ceruminous glands, thickening of dermis and epidermis, stenosis
5
Q
What causes 80% of ear disease?
A
Atopy
6
Q
Which kinds of diseases can alter cerumen?
A
Endocrine
7
Q
How long should you treat acute otitis externa?
A
10-14 days
8
Q
What’s the most sensitive way of seeing in TM has ruptured?
A
+ve contrast
9
Q
What are some ototoxic drugs?
A
Polymixin B, ticarcillin, aminoglycosides
10
Q
Which drugs have minimal toxicity?
A
Squalene, TrizEDTA, chlorhex 2%
