Final answer:
The nurse will first assess the newborn's Apgar score to evaluate the baby's transition from the uterus to the outside world.
Step-by-step explanation:
The nurse will first assess the newborn's Apgar score after a normal vaginal delivery. The Apgar score is a simple test administered to the infant immediately after birth to evaluate its transition from the uterus to the outside world. It assesses the infant's heart rate, respiratory effort, muscle tone, reflex irritability, and color. This assessment helps determine the baby's overall well-being and whether any immediate interventions are needed.