Question

Using Nagele's rule, determine the estimated date of birth for a woman who had a recent positive pregnancy test and whose first day of last menstrual period was May 8.

Answer 1

To calculate the estimated date of birth using Nagele's rule, take the first day of the last menstrual period (May 8), subtract three months, add one year, and then add seven days to get February 15 as the estimated due date.

Step-by-step explanation:

To determine the estimated date of birth using Nagele's rule, one takes the first day of the last menstrual period (LMP), subtracts three months, adds one year, and then adds seven days. In this scenario, the LMP was May 8. Following Nagele's Rule, we subtract three months from May 8, which takes us to February 8. Next, we add one year, changing the year to the next, and finally, we add seven days, which gives us February 15 of the following year as the estimated due date.

Here's the calculation step-by-step:

1. Start with the first day of the LMP: May 8.
2. Subtract three months: February 8.
3. Add one year: If the LMP is in 2022, this would bring us to February 8, 2023.
4. Add seven days: February 15, 2023.

Therefore, the estimated date of birth, according to Nagele's rule, would be February 15, 2023.