This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Medical & Surgical Illness Complication Pregnancy, Subject name: Gynaecology & Obstetrics
[{'content': 'One of the following is an absolute contraindication for treatment of Thyrotoxicosis in pregnancy of 6 months duration: \nSelect and explain. \nA. Antithyroid drug, B. I131 therapy, C. Telepaque, D. Surgery', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. is b, i.e. I131 therapyRef. Dutta Obs. 6/e, p 290; Williams Obs 23/e, p 1130Radioactive iodine is an absolute contraindication in the treatment of thyrotoxicosis in pregnancy. In fact, it should not be given to patients even wanting pregnancy within 6 months.', 'role': 'assistant'}]