Add the score of the neuromuscular components to your score of physical maturity to determine weeks of gestation. How many weeks of gestation has this child had?

Question

A 32-year-old white female presents to labor and delivery fully effaced and delivers a 5.8-lb (2,500-gram) infant female with Apgar scores of 6 and 8. The mother has had no prenatal care and in the nursery you perform the newborn examination. With the Ballard scoring system, the neuromuscular examination score is 15. Looking at physical maturity, you see superficial peeling and few veins on the skin. The lanugo hair has bald areas and the plantar surface of the foot has creases on two thirds of it. The areola is stippled with a 2-mm bud. The pinna is well curved, is firm, and has instant recoil. The labia majora and minora are equally prominent.

A) 34 weeks
B) 36 weeks
C) 40 weeks

Answer 1

B) 36 weeks

Superficial peeling with few veins gives a score of 2 points; lanugo with balding areas gives a score of 3 points; the plantar surface being covered by two thirds gives a score of 3 points; the stippled areola with a 2-mm bud gives a score of 2 points; the well-formed pinna with instant recoil gives a score of 3 points. The equal labia majora and labia minora give a score of 2 points. Adding these numbers up gives a score of 15 points for physical maturity. Adding that to the 15 points for neuromuscular maturity gives a point total of 30, which correlates to a gestational age of 36 weeks. This would be expected with a birth weight of 2,500 grams.