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Amniotic fluid tests for fetal maturity in normal and abnormal pregnancies.
Am J Obstet Gynecol ; 125(5): 586-92, 1976 Jul 01.
Article in En | MEDLINE | ID: mdl-820200
ABSTRACT
Amniotic fluid creatinine, percentage of lipid-positive cells, and L/S ratio were determined on 285 samples from normal pregnancies and 222 samples from abnormal pregnancy states (Rh isoimmunization, diabetes, hypertensive disorders, intrauterine growth retardation, and hydramnios). In normal pregnancy the coefficient of correlation between true gestational age and estimated period of gestation (EPG) based on the three parameters was 0.94, in Rh isoimmunization 0.77, in diabetes 0.67, and in hypertensive disorders 0.59. In intrauterine growth retardation both the L/S ratio and creatinine were depressed, the coefficient was 0.61, and the EPG was consistently less than the true gestational age. The mean L/S ratio in pre-eclampsia was slightly below the normal mean and in diabetes the mean L/S ratio was also depressed. In 150 samples taken within 48 hours of delivery L/S ratios were accurate in assessing fetal pulmonary maturity although there was a 20 per cent incidence over all of false-immature values. There were no false-mature values except in diabetes (2/9).
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Collection: 01-internacional Database: MEDLINE Main subject: Pregnancy Complications / Pregnancy / Fetus / Amniotic Fluid Limits: Female / Humans Language: En Journal: Am J Obstet Gynecol Year: 1976 Document type: Article
Search on Google
Collection: 01-internacional Database: MEDLINE Main subject: Pregnancy Complications / Pregnancy / Fetus / Amniotic Fluid Limits: Female / Humans Language: En Journal: Am J Obstet Gynecol Year: 1976 Document type: Article