Dexamethasone is a potent steroid used to assist with which clinical process in premature infants?

• A. Treating sepsis
• B. Diagnosing metabolic disorders
• C. Ventilator weaning
• D. Promoting weight gain

Answer: (C)

Dexamethasone helps premature infants by accelerating lung maturation, which improves breathing efficiency. As the lungs develop, type II pneumocytes produce more surfactant and the lung tissue becomes more compliant, leading to better gas exchange. With stronger, more mature lungs, an infant on a ventilator is more likely to be extubated successfully and come off ventilation sooner. This is the specific benefit for assisting with ventilator weaning. It isn’t used to treat sepsis, diagnose metabolic disorders, or directly promote weight gain, and while it can aid lung readiness, its use requires weighing potential risks against benefits.