What is the estimated date of delivery for a client whose last normal menstrual period began on May 10, using Nägele's rule?

What is the estimated date of delivery for a client whose last normal menstrual period began on May 10, using Nägele's rule?

• A. January 13
• B. January 17
• C. February 13
• D. February 17

Answer: (D)

To calculate the estimated date of delivery (EDD) using Nägele's rule, you start with the first day of the last menstrual period (LMP) and follow a specific process. First, you add one year to the year of the LMP, and then subtract three months from the month of the LMP. Finally, you add seven days to the date of the LMP. For a client whose last normal menstrual period began on May 10: 1. Start with the LMP: May 10. 2. Add one year: May 10, assuming the year is 2022, becomes May 10, 2023. 3. Subtract three months: This takes us back to February 10, 2023. 4. Add seven days: February 10 + 7 days = February 17, 2023. Thus, using Nägele's rule, the estimated date of delivery is February 17, which is why this option is the correct answer.

To calculate the estimated date of delivery (EDD) using Nägele's rule, you start with the first day of the last menstrual period (LMP) and follow a specific process. First, you add one year to the year of the LMP, and then subtract three months from the month of the LMP. Finally, you add seven days to the date of the LMP.

For a client whose last normal menstrual period began on May 10:

1. Start with the LMP: May 10.

2. Add one year: May 10, assuming the year is 2022, becomes May 10, 2023.

3. Subtract three months: This takes us back to February 10, 2023.

4. Add seven days: February 10 + 7 days = February 17, 2023.

Thus, using Nägele's rule, the estimated date of delivery is February 17, which is why this option is the correct answer.