Grave's disease is an example of type immunologic response_________________?
Correct answer: B. Type II
- A. Type I
- B. Type II
- C. Type III
- D. Type IV
Explanation
Graves disease is a type II hypersensitivity because IgG autoantibodies stimulate the TSH receptor on thyroid cells. Type I reactions are IgE-mediated, while types III and IV involve immune complexes and T cells respectively.
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