Respiratory Distress Syndrome

In a cohort of preterm neonates diagnosed with respiratory distress syndrome, which is the most common pulmonary complication that develops after the first week of life in those requiring prolonged mechanical ventilation?

A 28-week gestation female neonate born to a mother with rupture of membranes presents with respiratory distress within 2 hours of birth. Chest X-ray shows a ground-glass appearance with air bronchograms. Which drug is the first-line treatment for respiratory distress syndrome in this preterm infant?

A 28-week preterm male infant born to a mother with no antenatal steroids is admitted to NICU with grunting, intercostal retractions, and nasal flaring within 2 hours of birth. Chest X-ray shows a ground-glass appearance with air bronchograms. SpO₂ is 88% on room air. What is the most appropriate immediate next step in management?

A 34-week preterm female infant born to a mother who received complete antenatal corticosteroids presents with mild tachypnea (60 breaths/min), minimal intercostal retractions, and SpO₂ 92% on room air at 4 hours of life. Chest X-ray shows mild hyperinflation with faint perihilar haziness. What is the most appropriate next step in management?

Which phospholipid is the primary component of pulmonary surfactant and is deficient in Respiratory Distress Syndrome?