A 50-year-old man presents to his clinician because of bilateral itching, burning, and redness of the lower extremities. He states that he wore shorts

Subject
Medicine
System
Allergy & Immunology

Kathryn

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A 50-year-old man presents to his clinician because of bilateral itching, burning, and redness of the lower extremities. He states that he wore shorts while gardening outside his house recently and could have come in contact with poison ivy. Which of the following statements regarding this patient’s immune response is most correct?
(A) Goodpasture’s syndrome is a disease with a similar reaction pathogenesis
(B) Histamine is the primary mediator leading to this type of reaction
(C) The pathogenesis implicates previously sensitized B lymphocytes
(D) The patient has never been exposed to poison ivy
(E) The patient is suffering from a type I hypersensitivity reaction
(F) The patient must have been exposed to a poison ivy plant prior to this instance
 
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