Final answer:
The nurse should perform the actions of aspirating mucus and clamping/cutting the umbilical cord in that order.
Step-by-step explanation:
The nurse should perform the following actions in order:
- Aspirate mucus from the newborn's mouth and nose
- Clamp and cut the umbilical cord
Aspirating mucus from the newborn's mouth and nose is important to clear their airway before their first breath. Next, the umbilical cord should be double-clamped and cut to separate the newborn from the placenta. This completes the second stage of childbirth.