Which of the following statements about natural surfactant is accurate?

Which of the following statements best describes the action of natural surfactant when it is injected through an endotracheal tube?

Which of the following statements about surfactant deficiency is accurate?

Which of the following babies is at lowest risk for developing respiratory distress syndrome?

Preterm babies who have been stressed in utero have a incidence of respiratory distress syndrome

Which of the following methods of surfactant administration is appropriate?

All commercial surfactants contain the same components.

Betamethasone or dexamethasone administered to a pregnant woman. plus surfactant administered to the preterm baby, is more beneficial than surfactant administered alone.

By 32 weeks' gestation, approximately 60% of fetuses are producing adequate surfactant to prevent respiratory distress syndrome.

All surfactant components are produced by the lung at the same time during gestation.

Studies have shown that the earlier surfactant is used, the more effective it is.