(02-03) Allergic Skin Diseases: Atopic Dermatitis: Gods

Question 1

atopy is defined as what?

Atopic dermatitis is what?

atopic dermatitis is thought to be mainly a true what?

Answer 1

inherited predisposition to develop IgE antibodies to environmental allergens, which are normally innocuous substances

when cutaneous signs result

type I hypersensitivty reaction (IgE mediated)

Question 2

(IF)
1. Atopic dermatitis is an inherited predisposition for what?

2. how do sensitizing agents get in?
3. what are allergens commonly involved in canine atopic dermatitis?

Answer 2

1. development of IgE antibodies to innocuous environmental allergens, which will result in cutaneous signs
2. inhaled/penetrate skin
3. pollens and house dust

Question 3

(IF)

1. What is the single most important in the diagnosis and treament of canine atopy?
2. the historical hallmark of canine atopic dermatits is what?
3. Signs usually start at what age?
4. clinical signs are seasonal or non?
5. Because of the genetic predisposition, the disorder is recognized more frequently in certain breeds or families

Answer 3

1. thorough history
2. pruritis
3. 1 to 3 years (can be from 6 months to 6 years)
4. can be either

Question 4

(IF)

1. pruritis is typically located to what?
2. what is common in dogs with atopic dermatitis?
3. How often will atopic dermatitis be associated with primary lesions? any lesions are what?
4. How common are secondary staph pyoderma, seborrhea, Malassezia dermatitis in atopic dogs?

Answer 4

1. face, axillae, ventrum, lateral thorax, and feet
2. otitis externa
3. rarely; secondary to scratching or complicating diseases (pyoderma, seborrhea, malassezia dermatitis)
4. VERY common (often aggravate pruritis primarily related with atophy)

Question 5

(IF)

1. atopic dermatitis can mimic what?
2. sarcoptic mites are only in what percentage of cases?
3. Do what if you suspect of sarcoptic mange and mites were not found on multiple skin scrapings

Answer 5

1. sarcoptic mange
2. 50% of cases
3. perform a treatment trial

Question 6

(IF)

1. Is there a perfect test for diagnosing atopic dermatitis?
2. what are other causes of pruritic dermatitis that can appear similar to atophy that should be ruled out?

Answer 6

1. no

2. food allergy, contact allergy, sarcoptic mange, cheyletiellosis, flea allergy, and pruritic pyoderma

Question 7

(IF)
1. Treat every case as a single patient
2. can atopy be cured?
3. what three things often aggravate pruritis associated with atopy?
4. Response to hyposensitization vaccine therapy using a recipe from a serum allergy test (RAST
or ELISA) is less or more (50% response) compared to the response using a vaccine recipe based on a
skin test?
5. In general, results are not observed before when?

Answer 7

2. no - only controlled with therapy
3. staph pyoderma, malassezia dermatitis, and seborrhea
4. less (70%)
5. 3 months of therapy (and may not be noted until 9 to 12 months)

Question 8

(IF)

1. Medical therapy should be instituted when?
2. Medical therapy includes antihistamines, fatty acid supplements, corticosteroids, other immunomodulating drugs and medicated shampoos and conditioners.
3. Always do an antihistamine trial to determine what?
4. Antihistamines and essential fatty acids work how?
5. Treat what before considering the use of corticosteroids?

Answer 8

1. if the animal is not a candidate for hyposensitization therapy, when waiting for the hyposensitization to work, or if the animal does not respond to hyposensitization therapy.
2. the best one to be used as maintenance
   therapy.
3. synergisticaly
4. the secondary complications (pyoderma, Malassezia dermatitis and seborrhea)

Question 9

(IF)

1. do not use what in dogs!?
2. The maintenance dose of oral prednisone or prednisolone should not exceed what?
3. Always perform what at least once a year if corticosteroids or cyclosporine will be used as maintenance therapy.
4. Client education is essential for the successful treatment of atopic dermatitis.

Answer 9

1. injectable steroids
2. 0.5 mg/kg given every-other-day.
3. a chemistry profile, urinalysis and urine culture