question: Q:A 54-year-old woman is brought to the emergency department by a nurse 30 minutes after receiving scheduled radiation therapy for papillary thyroid cancer. After the radioisotope was ingested, the physician realized that a much larger fixed dose was given instead of the appropriate dose based on radiation dosimetry. Which of the following pharmacotherapies should be administered immediately to prevent complications from this exposure?? 
  {'A': 'Propylthiouracil', 'B': 'Mercaptoethanesulfonate', 'C': 'Potassium iodide', 'D': 'Methimazole', 'E': 'Dexrazoxane'},