Final answer:
The nurse assesses fetal heart rate patterns, fetal position and descent, and maternal respiratory rate during the first stage of labor.
Step-by-step explanation:
During the first stage of labor, the nurse assesses several fetal and maternal physiologic conditions. These include:
- Fetal heart rate patterns: The nurse monitors the baby's heart rate to ensure it remains within a normal range.
- Fetal position and descent: The nurse checks the baby's position and determines how far down they have descended into the birth canal.
- Maternal respiratory rate: The nurse observes the mother's breathing to ensure it remains steady and normal.