This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gastrointestinal tract, Subject name: Pediatrics
[{'content': 'If mother is HBsAg positive then newborn should be given __________ \nSelect and explain. \nA. Hepatitis B vaccine at 6 weeks, B. Hepatitis Vaccine at bih, C. Hepatitis B immunoglobulin within 24 hours of bih, D. Hepatitis B vaccine at bih and immunoglobulin within 24 hours at seperate sites', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Hepatitis B antigen {HBsAg} screening should be offered to all pregnant women.If the mother is known to be HBsAg negative ,it is not essential that HB vaccineton be given to the newborn at bih,vaccination can begin at 6 weeks. Where the mother&;s status is not known it is safer to vaccinate the newborn within a few hours of bih.Where the mother is known to be HBsAg possitive the child must receive the vaccine witin a few hours of bih ,along with Hepatitis B Immunoglobulin within 24 hours of bih.HBIG administeration upto 5 days may be effective.If HBIG not given baby must be immunised in an accelerated schedule of 0,1,2, months along with an additional dose at 9-12 months. Ref : ESSSENTIL PEDIATRICS,O.P.GHAI, PG NO:172,7 th edition', 'role': 'assistant'}]