A 24-year-old woman was found to have mild hyperthyroidism due to Graves’ disease. She appears to be in good health otherwise.
+Though rare, a serious toxicity associated with the thioamides is which of the following?
Agranulocytosis
+Lupus erythematosus-like syndrome
+Myopathy
+Torsades de pointes arrhythmia
+Thrombotic thrombocytic purpura (TTP)
Rarely, the thioamides cause severe adverse reactions that include agranulocytosis, vasculitis, hepatic damage, and hypoprothrombinemia. The answer is A.