A 56-year-old woman with no past medical history comes to the physician for a 4-month history of occasional tremulousness and palpitations. Heart rate is 90. ECG shows sinus rhythm. Physical examination shows exophthalmos. The mechanism of this patient’s condition is most immunologically similar to which of the following?
Arthus reaction
Atopic dermatitis
Idiopathic thrombocytopenic purpura
PPD test
Serum sickness
