Ear Medication

Question 1

What are the clinical signs of otitis externa

Answer 1

Shaking of the head, scratching of the ears, malodor of the ear canal, stenosis of the ear canal

Question 2

What are the five most common diseases that cause otitis externa

Answer 2

Atopy, food allergy, seborrhea, earmites, foreign body

Question 3

What is atopy

Answer 3

Inhaling allergy categorized by scratching, Paw licking, face rubbing.

Question 4

What is a food allergy

Answer 4

And allergy due to hyper sensitivity of certain foods and food additives

Question 5

What is seborrhea

Answer 5

Categorized by the excessive production of oil in the skin and the formation of greasy or dry scaly skin.

Question 6

What is ear mites

Answer 6

A parasite which commonly causes the onset of otitis externa

Question 7

What types of yeast are found in otitis externa

Answer 7

Malassezia and candida

Question 8

What type of bacteria are found in otitis externa

Answer 8

Staphylococcal or streptococcal

Question 9

What is the benefits of topical otic anti-infective agents

Answer 9

Antibacterial or antifungal properties. Often contain anti-inflammatory agents that reduce inflammation and decrease pruritis

Question 10

What is special about gentocin preparations

Answer 10

Possible ototoxicity because gentamicin is an aminoglycoside. Do not use in the presence of ruptured eardrum’s

Question 11

What is a common anesthetic contained in ear products

Answer 11

Tetracaine

Question 12

What is a squalane

Answer 12

Enhances the product by speeding up percutaneous penetration of the active ingredients

Question 13

What is the clinical use for chloramphenicol

Answer 13

Include treatment for acute otitis media externa and pyoderma in dogs and cats

Question 14

What is something that special about Chloramphenicol

Answer 14

Cannot be used in animals raised for food production

Question 15

What is one of the adverse side effects for neomycin

Answer 15

Ototoxicity. Do not use in presence of ruptured ear drum

Question 16

What are the four acids generally used as a drying agent in ear cleaners

Answer 16

Tannic acid, salicylic acid, acetic acid, boric acid.

Question 17

What can drying agents contain

Answer 17

An antimicrobial or a corticosteroids

Question 18

What is lactic acid used for

Answer 18

Antibacterial and Keratolytic. Lactic acid is thought to diminish corneocyte adhesion by interfering with the formation of ionic bonds.

Question 19

What is salicylic acid used for

Answer 19

Antibacterial and Keratolytic. It is believed that salicylic acid solubilizes cell surface proteins resulting in desquamantion of Keratolytic debris.

Question 20

What is pcmx used for

Answer 20

Broad spectrum germicide that has bacterial properties.

Question 21

What is sodium docusate

Answer 21

An effective wax and debris emulsifier.

Question 22

What is propylene glycol used for

Answer 22

Serves as a vehicle and also acts as a humectant by adding water to the stratum corneum

Question 23

What is a spherulite

Answer 23

Allows for slow release of product to prolong effects of active ingredients.

Question 24

Why would you do an ear flush

Answer 24

Flushing earwax remover’s debris, allows medication to contract the skin, allows visualization of the ear drum.

Question 25

What is tris edta used for

Answer 25

Removes calcium and magnesium ions from the covering of gram negative organisms causing the penetration of antiinfectives.

Question 26

What is otitis externa

Answer 26

Inflammation of the external auditory canal. Most common ear disease found in household pets