What is the primary purpose of Naegele's rule in obstetric care?

What is the primary purpose of Naegele's rule in obstetric care?

• A. Assess fetal heart rate
• B. Determine fetal weight
• C. Estimate the due date
• D. Evaluate placenta location

Answer: (C)

Estimating the due date from the last menstrual period. Naegele's rule uses the first day of the last normal menstrual period, adds seven days, and subtracts three months (adjusting for year if needed) to arrive at an approximate due date. This date is a practical guide for scheduling prenatal tests, ultrasounds, and finding milestones in the pregnancy. It does not determine fetal heart rate, fetal weight, or placenta location, which are assessed by ultrasound and other monitoring methods.

Estimating the due date from the last menstrual period. Naegele's rule uses the first day of the last normal menstrual period, adds seven days, and subtracts three months (adjusting for year if needed) to arrive at an approximate due date. This date is a practical guide for scheduling prenatal tests, ultrasounds, and finding milestones in the pregnancy. It does not determine fetal heart rate, fetal weight, or placenta location, which are assessed by ultrasound and other monitoring methods.