title: [Development and comparison of lecithin/sphingomyelin and palmitic acid/stearic acid ratios in amniotic fluid].
abstract: Fetal lung maturity has been studied both by silica gel chromatography of phospholipids and gas liquid chromatography of fatty acids. Lecithin/sphingomyelin (L/S) ratios and palmitic/stearic (P/S) ratios were compared. A good correlation was obtained. However, when the L/S ratio has an intermediate value (1.5 less than or equal to L/S less than 2) making it difficult to judge the fetal lung maturity, the P/S ratio expresses the lung maturity more accurately.
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis*; D002849:Chromatography, Gas; D002850:Chromatography, Gel; D005260:Female; D005333:Fetus / Q000033:anatomy & histology; D005865:Gestational Age; D006801:Humans; D008168:Lung / Q000196:embryology*; D010169:Palmitic Acids / Q000032:analysis*; D010713:Phosphatidylcholines / Q000032:analysis*; D011247:Pregnancy; D013109:Sphingomyelins / Q000032:analysis*
chemical_list: D010169:Palmitic Acids; D010713:Phosphatidylcholines; D013109:Sphingomyelins
vernacular_title: Evolution et comparaison des rapports lécithine/sphingomyéline et acide palmitique/acide stéarique dans le liquide amniotique.