Question

During a prenatal visit a patient tells you her last menstrual period was November 25, 2016. Based on the Naegele's Rule, when is the estimated due date of her baby?

Answer 1

To calculate the estimated due date using Naegele's Rule, add one year, subtract three months, and add seven days to the first day of the LMP. For the LMP of November 25, 2016, the estimated due date is September 1, 2017.

Step-by-step explanation:

Based on Naegele's Rule, the estimated due date (EDD) for a pregnancy is calculated by adding one year, subtracting three months, and adding seven days to the first day of the last menstrual period (LMP). In this scenario, the patient's LMP was on November 25, 2016. Therefore, to calculate the EDD you add one year (November 25, 2017), subtract three months (August 25, 2017), and finally add seven days (September 1, 2017). Thus, the estimated due date for the baby would be September 1, 2017.