Hypersensitivity Quiz

What is the defining characteristic of hypersensitivity reactions?

• No immune response

• Reduced immune response

• Heightened immune response

• Normal immune response

Which type of hypersensitivity involves IgE antibodies?

• Type II

• Type I

• Type IV

• Type III

In Type II hypersensitivity, which antibodies are primarily involved?

• IgG and IgM

• IgA

• IgE

• IgD

What is the main role of complement in Type II hypersensitivity?

• Produces antibodies

• Stimulates T cells

• Promotes phagocytosis

• Inhibits immune response

Which type of hypersensitivity is characterized by the formation of immune complexes?

• Type I

• Type II

• Type IV

• Type III

What is the time frame for symptoms to develop in Type IV hypersensitivity?

• Immediate

• Minutes to hours

• 24-48 hours

• Seconds to minutes

What type of cells are primarily responsible for Type IV hypersensitivity reactions?

• B cells

• T cells

• Mast cells

• Neutrophils

Which of the following is a common example of Type I hypersensitivity?

• Transfusion reaction

• Asthma

• Serum sickness

• Rheumatoid arthritis

What is the role of IgE in Type I hypersensitivity?

• Promotes cell lysis

• Acts as an antigen receptor

• Inhibits cytokine release

• Stimulates B cell activation

Which of the following is NOT a treatment for Type I hypersensitivity?

• Epinephrine

• Corticosteroids

• Antihistamines

• Antibiotics