(11) - Urticaria

Question 1

1. Urticaria can occur in any species but, it is most commonly seen in what?

Answer 1

1. horses and dogs

Question 2

1. Urticaria results rom immunologic or non-immunologic stimuli?
2. Immunologic cases associated with what type of hypersensitivity?
3. Non-immunologic factors that may precipitate or intensify urticarial reaction are cold, heat,
   sunlight, exercise, stress, genetic influences and various drugs and chemicals (e.g. aspirin,
   narcotics, foods, food additives).
4. Urticaria can be caused by drugs, foods, inhalant allergens, snake or insect bites, plants and vaccines.

Answer 2

1. can be either (immunologic most common)

2. type 1

Question 3

1. Any predilections?
2. Reactions are characterized by what?
3. Urticarial lesions may occasionally assume bizarre patterns (serpiginous, linear, arciform,
   annular, and papular). Hair may appear raised in these areas.
4. Is pruritis present?

Answer 3

1. no
2. localized or generalized wheals (which usually do not exhibit serum leakage or hemorrhage. )
3. sometimes

Question 4

1. Diagnosis is based on a careful history and clinical signs.
2. It may be very difficult to find the substance responsible.
3. Elimination and avoidance of known etiologic factors, if possible.
4. Symptomatic therapy with what?
5. what may be lifesaving in severe angioedematous reactions?

Answer 4

4. glucocorticoids and antihistamines.

5. Epinephrine