Which of the following represents the average amount of weight gained during pregnancy?

24 to 30 lb

The average amount of weight gained during pregnancy is 24 to 30 lb. This weight gain consists of the following: fetus 7.5 lb; placenta and membrane 1.5 lb; amniotic fluid 2 lb; uterus 2.5 lb; breasts 3 lb; and increased blood volume 2 to 4 lb; extravascular fluid and fat 4 to 9 lb.Option A: A gain of 12 to 22 lb is insufficient.Option B: Whereas a weight gain of 15 to 25 lb is marginal.Option D: A weight gain of 25 to 40 lb is considered excessive.