Final answer:
At 28 weeks' gestation, the fundal height of a pregnant client is expected to be around 28 cm.
Step-by-step explanation:
The nurse measures the fundal height of a pregnant client at 28 weeks' gestation to determine the growth of the uterus. Fundal height is measured in centimeters and is taken by measuring from the top of the pubic bone to the top of the uterus. At 28 weeks' gestation, the expected fundal height would be around 28 cm.