Localized injury or death of tissue resulting from repeated injections of an antigen into a person with high levels of circulating specific antibody is known as
A) farmer's lung.
B) German measles.
C) serum sickness.
D) an Arthus reaction.
E) disseminated intravascular coagulation.

Question

Quizplus · Accepted Answer

This is a classic description of an Arthus reaction, which occurs when a person has high levels of circulating antibodies to an antigen and is then injected repeatedly with that antigen. The immune complexes formed in the tissue cause inflammation and localized tissue damage. Farmer's lung is a type of allergic reaction to inhaled organic dusts, German measles is a viral infection, serum sickness is a type of hypersensitivity reaction to drugs or vaccines, and disseminated intravascular coagulation is a serious bleeding disorder.

Localized Injury or Death of Tissue Resulting from Repeated Injections