Final answer:
Fundal height, the measurement from the pubic bone to the top of the uterus, can be used to estimate gestational age during pregnancy. However, it is an estimation and may not be accurate for all women.
Step-by-step explanation:
Fundal height refers to the measurement from the top of the pubic bone to the top of the uterus, and it can be used to estimate gestational age during pregnancy. The height of the fundus, or the top of the uterus, increases as the pregnancy progresses. It generally corresponds to the number of weeks of gestation. For example, if the fundal height is about 20 centimeters, it's likely that the woman is around 20 weeks pregnant.
However, it's important to note that fundal height is only an estimate and may not be accurate for all women. There can be variations in individual pregnancies and the size of the uterus.