Multiple Choice
Which of the items below accurately describe characteristics of Type 4 hypersensitivity reactions.Check all that apply.
A) Reactions occur within minutes of antigen exposure (provocative dose) .
B) Reactions are generated by components of the cell-mediated immune response.
C) IgE, basophils, and mast cells are typically involved.
D) Histamine is a major mediator of symptoms.
E) Reactions are delayed for 24- 48 hours after provocative antigen exposure.
F) The tuberculin skin test and the rash caused by poison ivy and poison oak are examples.
Correct Answer:
Verified
Correct Answer:
Verified
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