TESTS OF FETAL WELLBEING IN THE THIRD TRIMESTER OF PREGNANCY

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Abstract
Five different products secreted by the fetoplacental unit into the maternal circulation were measured in 272 patients when they were 34 weeks pregnant. The most useful indicator of present pathology or future complications of pregnancy was a placental protein, pregnancy associated plasma protein. A which was raised in pre-eclamptic toxaemia, antepartum haemorrhage and premature labour. The highest values were recorded in pre-eclampsia before any signs of the disease were evident. Schwangerschafts protein 1 was also raised in pre-eclampsia and antepartum haemorrhage but only after the disease had presented. Placental lactogen was also raised in pre-eclampsia and its measurement may have some predictive value. Total oestriol was lowered in fetal growth retardation and the unconjugated steroid raised in pre-eclampsia and lowered in retarded fetal growth.