In the upsc prelims medical sciences paper on may 18 2008, a match the following question was asked regarding the types of hypersensitivity reactions :
MATCH THE FOLLOWING :
A) TYPE 1 1. auto immune hemolytic anaemia
B) TYPE 2 2. contact dermatitis
C) TYPE 3 3. atopic form of bronchial asthma
D) TYPE 4 4. systemic lupus erythematosus
ANSWER : A3 B2 C4 D1 .
This is very important so just go through the list of hypersensitivity reactions and how they are classified . below . mediators included .
Type 1 hypersensitivity : Allergy
Atopy
Anaphylaxis
Asthma
IgE ( mediator )
type 2 hypersensitivity : Cytotoxic, antibody-dependent
erythroblastosis fetalis
Goodpasture's syndrome
autoimmune hemolytic anemia
IgM or IgG ( mediator )
(Complement)
type 3 hypersensitivity : Immune complex disease
Serum sickness
Arthus reaction
SLE
IgG ( mediator )
(Complement)
Type 4 hypersensitivity : cell-mediated
contact dermatitis
tuberculosis
Chronic transplant rejection
Cell-mediated
see post numbers 168,169,170,171 for the complete list of conditions associated with type 1,2,3,4 hypersensitivity reactions .
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