This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thyroid Gland, Subject name: Surgery
[{'content': 'Chvostek sign may be present after what surgery? \nSelect and explain. \nA. Gastrojejunostomy, B. Total thyroidectomy, C. Subtotal thyroidectomy, D. Hellers cardimyotomy', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) Total thyroidectomyRef: Rajamahendran Long Cases in Surgery* In subtotal thyroidectomy injury or damage to blood supply of Parathyroid never happens.* It happens only in Total thyroidectomy which manifests as Hypocalcemia on 2-5th POD.* Chvostek and Trousseau signs are seen in Early Hypocalcemia', 'role': 'assistant'}]