title: [Standardization criteria for the study of fetal lung maturity by means of gas-liquid chromatography of the fatty acid content of the amniotic fluid].
abstract: Gas-chromatographic analysis of the fatty acids (P/S ratio) in 10 samples of amniotic fluid and 10 samples of the pellets obtained after centrifugation of amniotic fluid at 3500 X g for 60 minutes were carried out to evaluate the effects of contaminants that might be present in amniotic fluid. The P/S ratio is used as an index of the degree of maturity of the fetal or neonatal lung. We propose a standard procedure of centrifugation for 60 minutes at 3500 X g followed by extraction and gas-chromatography as a rapid, valid way to measure the P/S ratio.
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis*; D002849:Chromatography, Gas; D005227:Fatty Acids / Q000032:analysis*; D005325:Fetal Organ Maturity; D006801:Humans; D008168:Lung / Q000196:embryology*
chemical_list: D005227:Fatty Acids
vernacular_title: Contributo ai criteri di standardizzazione per lo studio della maturita polmonare fetale mediante GLC degli acidi grassi contenuti nel liquido amniotico.