ATI Maternal Newborn Proctored Related

Review ATI Maternal Newborn Proctored related questions and content

A client is scheduled for a cesarean birth based on fetal lung maturity. Which finding indicates that the fetal lungs are mature?

  • A. Absence of Phosphatidylglycerol (PG)
  • B. Biophysical profile score of 8
  • C. Lecithin/sphingomyelin (L/S) ratio of 2:1
  • D. Reactive nonstress test
Correct Answer: C

Rationale: The correct answer is C: Lecithin/sphingomyelin (L/S) ratio of 2:1. This ratio indicates fetal lung maturity as it signifies adequate production of surfactant in the fetal lungs, essential for proper lung function after birth. Absence of Phosphatidylglycerol (PG) (Choice A) indicates immaturity, Biophysical profile score of 8 (Choice B) assesses overall fetal well-being, not lung maturity, and Reactive nonstress test (Choice D) evaluates fetal well-being, not lung maturity. The L/S ratio of 2:1 is the most reliable indicator of fetal lung maturity.