Prolonged pregnancy is the one that exceeds: (A) 390/7, (B) 400/7, (C) 410/7, (D) 420/7
Answer is D. The international definition of prolonged pregnancy, endorsed by the American College of Obstetricians and Gynecologists (2016b,d) is one that exceeds 420/7 weeks, namely, 294 days or more from the first day of the last menstrual period.Reference: William's Obstetrics; 25th edition; Chapter 43; Postterm pregnancy