Using Nägele's rule, what would be the estimated due date for a client whose last menstrual period began on February 9?

To estimate the due date using Nägele's rule, the process involves a few simple calculations based on the first day of the last menstrual period (LMP). The rule states that you take the date of the first day of the LMP, add one year, subtract three months, and then add seven days.

For a last menstrual period that began on February 9:

1. Start with the year: If the LMP is in 2023, adding one year brings us to 2024.

2. Next, subtract three months from February, which brings us to November of the previous year (2023).

3. Finally, add seven days to February 9, resulting in February 16.

Therefore, the estimated due date is November 16, 2024. This calculation leads to the final answer of 1116, which signifies November 16, taking into account the way the dates are formatted in this context.

Using this method ensures that the due date is based on a standardized calculation, which is important for prenatal care and monitoring the pregnancy.