RN Maternal Nursing OB Newborn 2023 2024 Exam Related

Review RN Maternal Nursing OB Newborn 2023 2024 Exam related questions and content

A nurse is calculating the estimated date of delivery for a client who reports that the first day of her last menstrual period was August 10. Using Nägele’s Rule, which of the following is the client’s estimated date of delivery?

  • A. May 13
  • B. May 17
  • C. May 3
  • D. May 20
Correct Answer: B

Rationale: The correct answer is B: May 17. Nägele's Rule calculates the estimated date of delivery by adding 7 days to the first day of the last menstrual period, then subtracting 3 months, and finally adding 1 year. In this case, August 10 + 7 days = August 17. Subtracting 3 months gives us May 17, which is the estimated date of delivery. Choice A (May 13) is too early as it doesn't account for the full gestational period. Choice C (May 3) is also too early, and choice D (May 20) is too late based on the calculation.