Using Nagele's rule, what is the estimated due date for a patient whose last menstrual period was March 3, 2018?

Using Nagele's rule, what is the estimated due date for a patient whose last menstrual period was March 3, 2018?

• A. December 2, 2018
• B. November 27, 2018
• C. December 10, 2018
• D. December 17, 2018

Answer: (C)

To estimate the due date using Nagele's rule, you start with the first day of the patient's last menstrual period (LMP). In this case, that date is March 3, 2018. According to Nagele's rule, you add one year to the year of the LMP, subtract three months from the month of the LMP, and then add seven days to find the estimated due date. Applying this process: 1. **Add one year**: March 3, 2018 becomes March 3, 2019. 2. **Subtract three months**: March 3, 2019 becomes December 3, 2018. 3. **Add seven days**: December 3, 2018 plus seven days leads to December 10, 2018. This calculation aligns with the answer choice provided, making the estimated due date December 10, 2018. Utilizing Nagele's rule is a standard practice in obstetrics for determining a woman's estimated due date based on her menstrual cycle.

To estimate the due date using Nagele's rule, you start with the first day of the patient's last menstrual period (LMP). In this case, that date is March 3, 2018. According to Nagele's rule, you add one year to the year of the LMP, subtract three months from the month of the LMP, and then add seven days to find the estimated due date.

Applying this process:

1. Add one year: March 3, 2018 becomes March 3, 2019.

2. Subtract three months: March 3, 2019 becomes December 3, 2018.

3. Add seven days: December 3, 2018 plus seven days leads to December 10, 2018.

This calculation aligns with the answer choice provided, making the estimated due date December 10, 2018. Utilizing Nagele's rule is a standard practice in obstetrics for determining a woman's estimated due date based on her menstrual cycle.