Adequate surfactant is produced by fetal lungs beginning around 32-34 weeks gestational age. Therefore, the 25-week gestation neonate would benefit from surfactant. Meconium deactivates surfactant that is present in the full-term neonate, so that patient would also benefit from surfactant. The 30-week neonate on room air, the 32-week gestation neonate requiring CPAP, and the full-term neonate on CPAP do not require surfactant because they are stable and would not benefit from it.