Final answer:
A baby born at 30 weeks may need supplemental oxygen among other medical interventions due to underdeveloped lungs and the immaturity of other bodily systems.
Step-by-step explanation:
If a baby is born at 30 weeks, one type of medical intervention that might be necessary to keep the baby alive is the administration of supplemental oxygen. At 30 weeks, a baby is considered very premature, and their lungs may not be fully developed to support breathing in room air. Supplemental oxygen is provided to ensure that the baby's tissues receive enough oxygen to function properly and grow. In addition to oxygen, preterm infants may require other interventions such as staying in a neonatal intensive care unit (NICU) for temperature control and specialized feeding, respiratory support with a ventilator or CPAP machine, and possibly medications to assist with lung development and prevent infections.