Types of allergic reactions in Type I
•]localized reaction:
•-a cutaneous reaction with:
•La Awheal and flair@ reaction
•Llocal edema
•Litching at site of allergen introduction
•]generalized reaction:
•-also known as Aanaphylaxis@
•-vasodilation
•-bronchioconstriction
•-edema
•Miscellaneous information:
•Uthe allergic reaction may be induced by C3a and C5a
•Uthe level of free IgE can be measured by RAST to determine allergen responsible for reaction