Final answer:
The frequency of a woman's contractions during labor can be determined by measuring the time between each contraction and the duration of each contraction using a fetal monitor.
Step-by-step explanation:
The method used to determine the frequency of a woman's contractions during labor is by measuring the time between each contraction and the duration of each contraction. To do this, a healthcare provider may use a device called a fetal monitor, which records the contractions as well as the baby's heart rate. The monitor can display a graph of the contractions and provide information about their frequency and duration.
For example, if contractions are occurring every 5 minutes and lasting for 30 seconds, the frequency would be every 5 minutes and the duration would be 30 seconds.
This method helps healthcare providers monitor the progress of labor and ensure both the mother and baby are tolerating the contractions.