This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neonatal sepsis, Subject name: Pediatrics
[{'content': 'How much time later should ROP screening be done for a 2 week old baby being treated in NICU for sepsis, who was born at 28 wk gestation? \nSelect and explain. \nA. 2 weeks, B. 4 weeks, C. 6 weeks, D. 8 weeks', 'role': 'user'}, {'content': 'Answer: A \nExplanation: First screening - carried out at 32 weeks of post menstrual age (PMA) or 4 weeks of postnatal age, whichever is later In the given scenario, baby is born at 28 week gestation, so 1st screening should be done at 4 weeks postnatal age i.e 32 weeks PMA As the baby is already 2 weeks old screening for ROP should be done 2 weeks later.', 'role': 'assistant'}]