1
Q
How many hypersensitivities are there?
A
IV
2
Q
What is described by: “An immunological excessive reaction against an antigen that products damage in different tissue and systems in the body.”
A
Hypersensitivity!
(The person must of been previously in contact with this Allergen to have created a previous sensitisation in the body)
3
Q
Are type I, type II, and type III hypersensitivity reactions immediate reactions?
A
Yes
They have an Ag-Ab (antigen-antibody) dependent interaction
4
Q
How are Type IV hypersensitivity (delayed) reactions mediated?
A
Mediated by cells; lymph, T cells etc
Immunology & Allergy
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