Foam test, amniotic fluid cytology, creatinine and fetography in evaluation of fetal maturity.

Amniocenteses were performed in 73 pregnant women for maturity assessment in cases of high risk pregnancies, pregnancies of unknown gestational age and before an elective cesarean section. The evaluation of fetal maturity was based on: 1) foam test; 2)amniotic fluid cytology; 3)creatinine concentration; 4) fetography and 5) clinical criteria. The results which were assessed as to the proven infant maturity were as follows: Foam test 84.3%, lipid laden cells 75%; Creatinine 62.5% and fetography 56.3%.