A 1.5 kg child born at 32 weeks by LSCS presents with moderate respiratory difficulty (RR: 70/min, Spo2: 92%). Which is the next best step?
**Core Concept**
The child is a premature infant, born at 32 weeks, presenting with respiratory distress, which is a common issue in preterm infants due to the underdeveloped lungs. The infant's respiratory rate is elevated, and oxygen saturation is slightly low, indicating the need for respiratory support.
**Why the Correct Answer is Right**
The next best step in managing this premature infant is to administer surfactant replacement therapy. Surfactant is a substance produced by the lungs that reduces the surface tension of the alveoli, facilitating easier lung expansion and preventing the collapse of alveoli during exhalation. Premature infants often have low levels of surfactant, leading to respiratory distress. Administering surfactant can significantly improve lung function and oxygenation in these infants. In this case, the infant's respiratory difficulty and low oxygen saturation suggest the need for surfactant replacement therapy.
**Why Each Wrong Option is Incorrect**
**Option A:** Administering oxygen alone may not be sufficient, as it does not address the underlying issue of surfactant deficiency.
**Option B:** Starting mechanical ventilation may be necessary in severe cases, but it is not the next best step in this scenario, as the infant's respiratory difficulty is moderate and surfactant replacement therapy can be effective.
**Option C:** Administering a bronchodilator may be helpful in cases of bronchospasm, but it is not the next best step in this scenario, as the infant's respiratory difficulty is likely due to surfactant deficiency rather than bronchospasm.
**Clinical Pearl / High-Yield Fact**
Premature infants born at or before 32 weeks gestation are at high risk of respiratory distress syndrome, which is often due to surfactant deficiency. Administering surfactant replacement therapy can significantly improve lung function and oxygenation in these infants.
**Correct Answer: C. Administer surfactant replacement therapy.**