L4 Patho I Hypersensitivity

What is an allergy?

• A response directed against beneficial foreign tissues.

• A misdirected response against the host’s own cells.

• An exaggerated response against an environmental antigen.

• An altered immunologic response to an antigen that results in disease or damage to the host.

What is hypersensitivity?

• A response directed against beneficial foreign tissues.

• An altered immunologic response to an antigen that results in disease or damage to the host.

• A misdirected response against the host’s own cells.

• An exaggerated response against an environmental antigen.

What is autoimmunity?

• A response directed against beneficial foreign tissues.

• An altered immunologic response to an antigen that results in disease or damage to the host.

• An exaggerated response against an environmental antigen.

• A misdirected response against the host’s own cells.

What is alloimmunity?

• An altered immunologic response to an antigen that results in disease or damage to the host.

• An exaggerated response against an environmental antigen.

• A response directed against beneficial foreign tissues.

• A misdirected response against the host’s own cells.

Which of the following is an inappropriate immune response?

• Allergy

• Hypersensitivity

• Autoimmunity

• All of the above

Which type of hypersensitivity is IgE-mediated and immediate?

• Type I

• Type II

• Type III

• Type IV

Which immunoglobulins are involved in tissue-specific hypersensitivity?

• IgE

• IgG, IgM

• IgA

• IgD

What type of hypersensitivity involves immune complexes and is immediate?

• Type I

• Type II

• Type III

• Type IV

Which type of hypersensitivity involves mast cells and is immediate?

• Type I

• Type II

• Type III

• Type IV

What type of hypersensitivity is associated with systemic lupus erythematosus?

• Type I

• Type II

• Type III

• Type IV