The nurse provides care for a pregnant client. The client comes for a second prenatal visit at 15 weeks gestation. The client's blood pressure is 120/72mmH. The client's first blood pressure at 12 weeks gestation was 124/80mmH. Which action does the nurse implement based on this information?

a. Document the blood pressure.
b. Retake the blood pressure with the client in a side-lying position.
c. Review nutrition with the client to determine iron intake.
d. Notify the health care provider.