Hypersensitvity Reactions

Question 1

Type 1

A

Answer 1

Anaphylactic (immediate)
Rapid 15-30
Bronchial asthma, bee sting, hay fever
IgE, mast cell, basophils

Question 2

Type 2

C

Answer 2

Cytotoxic
Mins to hours
Goodpasteur’s (lung + kidney),Blood transfusions ,Myasthenia gravis
IgG,

Question 3

Type 3

I

Answer 3

Immune complex mediated
3-10 hours
Glomeruloneohritis, lupus, RA, local necrosis, serum sickness=systemic
IgG & complement

Question 4

Type 4

D

Answer 4

Delayed hyper sensitivity 
Aka cell mediated aka cellular
48 hours
TB, contact dermatitis, transplant rejection via MHC 
T cell
Lymphocytes