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': 'Definition of low birth weight \nSelect and explain. \nA. Wt <2kg, B. Wt < 1.5kg, C. Wt <2.5kg, D. Wt <1 k', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Some important definitions in Neonatology Low birth weight: Birth weight of less than 2.5 kg irrespective of gestational age Very low birth weight: Birth weight of less than 1.5 kg irrespective of gestational age.\nExtremely low birth weight: Birth weight of less than 1.0 kg irrespective of gestational age Neonatal: First 28 days of postnatal life. Preterm:\nLess than 37 completed weeks of gestations Term: After 37 completed weeks of gestations Post term: After 42 completed weeks of gestations Past Dates:\nAfter 40 completed weeks of gestations Stillbirth: Delivering dead fetus after 28 weeks of gestation. (Defn changes with the country) Abortion:\nExpulsion of products of conception before 28 weeks of gestation. Small for Gestational Age (SGA):\nWeight below the I Oth percentile for the gestational age Large for Gestational Age (LGA):\nWeight above the 90th percentile for the gestational age Appropriate for Gestational Age (AGA): Weight between 10 lh & 90th percentile for the gestational age', 'role': 'assistant'}]