Exam 9: Hypersensitivity Reactions

After antigen-stimulated production of IgE and upon second exposure to the antigen, the antigen

This figure shows a skin reaction that developed as the result of the reaction of the individual to a ring that was not pure gold but was alloyed with nickel. The reaction appeared 2 days after wearing the ring. This rash is

The purpose of hyposensitization is to develop

Who is given RH immune globulin?

An example of a type II hypersensitivity disease is

An immunoassay has a solid matrix with a specific test allergen on its surface.

Skin testing uses

Which of the following is correct?

Hemolytic anemias are mediated by

In a transfusion reaction,

The symptoms of an immediate hypersensitivity reaction depend upon

What type of function do tissues injured in type III hypersensitivity often have?

An example of a type I hypersensitivity reaction is

Controls for a skin test for allergy include

A farmer was cleaning out the grain silo in the early fall, getting it prepared for fresh grain. There was an area to which she paid special attention because it had some mold, and it is important to disinfect it prior to addition of the new grain. This happened last year as well. During the initial stages of the cleanup, the air was full of the mold's smell and actually became cloudy in an area around her. Twelve hours later, she began to have respiratory symptoms that resulted from a hypersensitivity reaction. Upon testing her sera in an Ouchterlony reaction, she had an obvious precipitin reaction. The reaction seen in her lungs is similar to the reaction seen on the Ouchterlony. She has a

Two people are allergic to ragweed, but Bill of them has mild symptoms in his nose and eyes whereas the Sue experiences severe asthma. There are 17 species of ragweed. What are possible reasons for the difference in their symptoms?

IgE-mediated reactions seem counterintuitive in relation to survival of the fittest because it seems strange that a response that can cause life-threatening results would be preserved., However, IgE-mediated responses can be protective in responses to pathogens

The indirect antiglobulin test, or IAT, is used when

The mast cell is armed with surface immunoglobulin during the

The assay that measures the amount of the patient's total IgE is