Final answer:
Regulating intravenous fluids is an important independent nursing action to promote normal progress in labor. Synthetic oxytocin can be administered to restart and maintain labor if it stops before stage two.
Step-by-step explanation:
An important independent nursing action to promote normal progress in labor is regulating intravenous fluids. When labor stops before stage two is reached, synthetic oxytocin, known as Pitocin, can be administered to restart and maintain labor.