Fetal lung maturity indices—a plea for gestational age–specific interpretation: A case report and discussion

A fetus with mature amniotic fluid lung indices was delivered with subsequent respiratory distress syndrome, demonstrating that fetal pulmonary maturity needs to be viewed as a probability. We calculated the probability of respiratory distress as a function of gestational age and fetal lung maturity. The percent risks are displayed in an easily readable table format. (Am J Obstet Gynecol 2002;187:1721-2.)