Allergy and hypersensitivities

Which class of antibody is associated with Type I Hypersensitivity?

• IgG

• IgA

• IgM

• IgE

An individual's first exposure to an antigen capable of eliciting a type I hypersensitivity initially causes which of the following responses?

• a sensitizing response

• a desensitizing response

• an allergic response

• a cytotoxic response

In ______________, a systemic allergic reaction causes symptoms such as hypotension, shock, nausea, vomiting, hives, and swelling of the throat.

• hay fever

• asthma

• anaphylaxis

• excezma

Which of the following are examples of Type II hypersensitivities? (Select all that apply)

• rheumatoid arthritis

• poison ivy

• hemolytic disease of the newborn

• rheumatic heart disease

Type III hypersensitivities involve _____ antibodies and ______ antigen

• IgE, insoluble

• IgG, insoluble

• IgG, soluble

• IgE, insoluble

Only cytotoxic T cells can be involved in Type IV hypersensitivity reactions.

• True

• False