Which of the following is an immunoglobin E (IgE) -mediated hypersensitivity reaction?
A) A transfusion reaction resulting from an infusion of incompatible blood into a person who has preexisting antibodies directed against the transfused cells
B) Organ or tissue damage resulting from deposition of antigen-antibody complexes in the organs or tissues of an affected person
C) An area of swelling and tenderness in the skin after an intradermal injection of protein material derived from the tubercle bacillus
D) A penicillin reaction characterized by fall in blood pressure and respiratory distress after an injection of penicillin in a person who has become sensitized to penicillin as a result of a previous penicillin injection
Correct Answer:
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