QuestionSBA
QuestionChoice
Type IV is a T-cell mediated delayed hypersensitivity reaction.
10001337
a
Type IV
QuestionChoice
Type II is known as a cell-bound hypersensitivity reaction in which IgG or IgM binds to antigens on the cell surface. Pemphigus Vulgaris and immune thrombocytopenic purpura are examples of type II hypersensitivity reactions.
10001339
c
Type II
QuestionChoice
In Type V hypersensitivity reactions, antibodies are produced that recognise and bind to cell surface receptors, and either stimulate them or block ligand binding. Graves' disease and myasthenia gravis are examples of Type V hypersensitivity reactions.
10001341
e
Type V
QuestionChoice
In Type I hypersensitivity reactions, an antigen reacts with IgE bound to mast cells. Anaphylaxis and asthma are examples of type I hypersensitivity reactions.
10001338
b
Type I
QuestionChoice
Type III is known as an immune complex hypersensitivity reaction in which free antigen and antibody (IgG, IgA) combine. Systemic lupus erythematosus is an example of a type III hypersensitivity reactions
10001340
d
Type III
Concept
Chapter
2693
3912
contact dermatitis
Topic
144
Dermatology
12814
A 22-year-old female presents to her GP with weeping eczema along the margins of her hairline. She discloses that she dyed her hair 2 days ago and the skin irritation has only occurred since then. She is diagnosed with allergic contact dermatitis.

Which of the following best describes the type of hypersensitivity reaction that occurs in allergic contact dermatitis?
a