Final answer:
The most important nursing assessment immediately following vaginal delivery is the Newborn Apgar score. The Apgar score is a simple test administered to an infant immediately after birth to evaluate its transition from the uterus to the outside world.
Step-by-step explanation:
The most important nursing assessment immediately following vaginal delivery is the Newborn Apgar score. The Apgar score is a simple test administered to an infant immediately after birth to evaluate its transition from the uterus to the outside world. It assesses five criteria: skin color, heart rate, reflex, muscle tone, and respiration. Scores are taken at 1 minute and 5 minutes after birth, and higher scores indicate a smooth transition for the baby.