Allergy and Anaphylaxis Flashcards
1
Q
What is an allergy?
A
A hypersensitivity reaction initiated by specific immunological mechanisms
2
Q
What are the two types of allergy?
A
IgE mediated (e.g. peanut allergy)
Non-IgE (e.g. coeliac)
3
Q
What is “atopy”?
A
Tendency to produce IgE in ordinary exposure to potential allergens
4
Q
Atopy associations
A
Asthma
Allergic rhinitis
Conjunctivitis
Eczema
Food allergy
5
Q
Signs of allergy
A
Mouth breathing/snoring/sleep apnoea
Pale swollen turbinates
Hyperinflation
Atopic eczema (limb flexures)
Allergic conjunctivitis
Blue-green discolouration of lower eyelids
