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: Pediatrics
[{'content': "Radionucleide scan used for diagnosis of Meckel's diverticulum is \nSelect and explain. \nA. Technitium 99 Pertechnate scan, B. Gallium scan, C. DOTA scan, D. None of the above", 'role': 'user'}, {'content': "Answer: A \nExplanation: Technitium 99 Pertechnate scan used to diagnose Meckel's diverticulum.\nNormal gastric mucosa takes up the scan.\nEctopic gastric mucosa in Meckel's diverticulum can also be seen.", 'role': 'assistant'}]