The Care Plans During Pregnancy
Estimating the expected date of delivery is one of the first important tasks in prenatal care because gestational age influences screening, diagnosis, medication decisions, fetal-growth assessment, and the timing of delivery. The original case uses a last normal menstrual period beginning on December 1, 2012. Applying Naegele’s rule—adding 280 days, or 40 weeks—gives an estimated due date of September 7, 2013. That calculation is correct if the menstrual date is

