Equine

Question 1

What drugs can cause urticara-angioedema in horses?

Answer 1

penicillin, tetracyclines, phenylbutazone, ciprofloxacin, streptomycin, sulfonamides, neomycin, aspirin, contacts, hormones, vaccines, antisera, guaifenisen, vit B complex and liver extract, flunixin, iron dextrans, acepromazine

Question 2

_____ ____ is the most common cutaneous vasculitis in the horse and is mos commonly caused by ________ __________

Answer 2

Purpura hemorrhagica

Strep. equi

Question 3

immune complexes in the sera of horses with post-strangles purpura hemorrhagica contain predominantly Ig__ with specificity for S. equi-specific antigen (____ protien)

Answer 3

IgA with specificity for M protein

Question 4

What percentage of horses with strangeles develop purpura hemorrhagica?

Answer 4

1-5%

Question 5

List 8 infectious differentials for purpura hemorrhagica (besides S. equi)

Answer 5

Equine influenza
Equine viral arteritis
Equine infectious anemia
Glanders
Equine granuloytic ehrlichiosis
Corynebacterium pseudotuberculosis
Rhodococcus equi
Streptococcus zooepidemicus

Question 6

T or F. Photoactivated vasculopathy is a poorly understood but relatively common entity in the horse that affects predominantly the pasterns and fetlocks.

Answer 6

True

Question 7

Which test for antistreptococcal antibody titer can be useful to confirm a diagnosis of S. equi suspected disease?

Answer 7

ELISA

Question 8

Which tests to r/o the following in equine vasculitis:

Equine viral arteritis

Answer 8

1. EVA - more than 4-fold increase in serum neutralizing antibody titers between acute and convalescent samples

Question 9

Which tests to r/o the following in equine vasculitis:

Equine infectious anemia

Answer 9

Positive Coggins

or

USDA accepted ELISA test

Question 10

In the horse, organ-limited amyloidosis usually affects the ____ +/- _________. Also referred to as primary or immunocytic amyloidosis

Answer 10

Skin

Respiratory tract

Question 11

Which tests to r/o the following in equine vasculitis:

Equine granulocytic ehrlichiosis

Answer 11

Anaplasma phagocytophila morulae within neutrophils and eosinophils

Question 12

What breed of horses have been reported to have an autosomal recessive condition in which affected foals lack hair and have a mild ichthyosis. Death occurs by 3 years of age. Genetic testing has found nonsense variant in ST14 gene - serine protease involved in epidermal development.

Answer 12

Akhal-teke