Final answer:
The nurse should explain that the symptoms experienced by the woman in labor are normal and advise the partner to keep her comfortable.
Step-by-step explanation:
The nurse should respond to the partner's question by saying, "It's a normal part of labor; try to keep her comfortable."
During labor, it is common for women to experience various symptoms such as nausea, hiccups, and a desire to be left alone. These symptoms are due to the hormonal and physical changes occurring in the woman's body during labor.
It is important for the partner to provide support and comfort to the woman during labor, as well as informing the nurse or medical team if there are any signs of distress or complications.