This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'A lady with a long stading thyroid nodule is planned for a subtotoal thyroidectomy. Before the surgery the surgeon must check/ do \nSelect and explain. \nA. Serum Calcium levels, B. Serum PTH assay, C. Indirect Larngoscopy, D. Iodine 131 scan', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer- C. Indirect LarngoscopyNerve Damage to recurrent / superior laryngeal nerve is a known complication of thyroidectomy.Hence it is impoant to document the state ofthe vocal cords before surgery to prevent litigation liability.', 'role': 'assistant'}]