This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Paediatric Care in RCH: BW, BL, PEM, Breast Feeding, Subject name: Social & Preventive Medicine
[{'content': 'Most common neonatal disorder screened is: \nSelect and explain. \nA. Neonatal hypothyroidism, B. Neonatal hypehyroidism, C. Hemoglobinopathies, D. Congenital Dislocation of Hip', 'role': 'user'}, {'content': "Answer: A \nExplanation: Most common neonatal disorder to be screened is Neonatal hypothyroidism (NNH) Blood sample is collected from Cord's Blood /fromheel prick after 24hrs of bih Test- measurement of T4 or TSH /both simultaneously. As a single method, T4 is more useful (greater precision and reproducibility) Congenital Hypothyroidism is one of the most common preventable cause of mental retardation. Hence, neonatal screening & early supplementation of thyroid hormones can prevent this mental retardation.", 'role': 'assistant'}]