Pediatrics Normal hematopoiesis 9c0a0290 RBC Lifespan in preterm babies: A < 40 days B 40-60 days C 75-90 days D 100-120 days High-Yield Explanation LIFE SPAN OF RBC: - Pre term neonates - 40-60 days - Term neonates - 90 days - Older children/ Adults - 120 days