This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Parathyroid & Adrenal Glands, Subject name: Surgery
[{'content': 'Post operative hypoparathyroidism related hypocalcemia usually presents with in \nSelect and explain. \nA. 48 hours, B. 10 days, C. 10 weeks, D. 6 month', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (A) (48 hours) (762- Bailey & Love 26th)Parathyroid insufficiency - the incidence of permanent hypoparathyroidism should be less than 1% and most cases present dramatically 2-5 days after operation, but very rarely, the onset is delayed for 2-3 weeks or if a patients with marked hypocalcaemia is asymptomatic', 'role': 'assistant'}]