A nurse is discussing contraception with a group of 14-year-old clients.
After the presentation, a client asks the nurse which method would be best for her.
What should the nurse respond?

The correct answer is D. Slightly above the umbilicus. At about 20 weeks of pregnancy, the fundus of the uterus is usually at the level of the umbilicus. By 22 weeks, the fundus is typically slightly above the umbilicus.

Based on your last menstrual period (LMP) of May 4, 2022, your estimated date of delivery (EDD) would be around February 11, 2023."

Rationale:

• Calculating the Estimated Date of Delivery (EDD): The EDD can be calculated using Naegele's Rule, which is a standard method used to estimate the due date. The rule involves subtracting three months from the first day of the last menstrual period (LMP), adding seven days, and adjusting the year if necessary.

• Application of Naegele’s Rule:

  • Start with the first day of the LMP: May 4, 2022.
  • Subtract three months: February 4, 2022.
  • Add seven days: February 11, 2022.
  • Since the year needs to be adjusted, the EDD is February 11, 2023.

Key Points:

• Naegele’s Rule is commonly used but assumes a 28-day menstrual cycle and ovulation on the 14th day. Variations in cycle length can affect the accuracy.