title: Amniotic fluid volume, total phospholipids concentratio, and L/S ratio in term pregnancies.
abstract: Amniotic fluid volume, lecithin/sphringomyelin ratio, total phospholipid concentration and total phospholipid per sac were investigated in 53 term pregnancies. A definite influence of amniotic fluid volume on the phospholipid concentration was noted, while no influence on the L/S ratio was observed. Amniotic fluid volume showed a tendency to decrease after the 40th week of gestation. The total quantity of phospholipids per sac showed no significant variation between the 36th and 42nd week of gestation.
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis*; D005260:Female; D005865:Gestational Age; D006801:Humans; D010713:Phosphatidylcholines / Q000032:analysis*; D010743:Phospholipids / Q000032:analysis*; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D013109:Sphingomyelins / Q000032:analysis*
chemical_list: D010713:Phosphatidylcholines; D010743:Phospholipids; D013109:Sphingomyelins