Prenatal Pediatrics

Abstract

Samples of maternal and fetal plasma maybe used to evaluate changes in fetal tissues which are secondary to intravenous therapy administered to the mother. Transient fetal bradycardia accompanying normal uterine contractions results from transient hyperactivity of the vagus nerve, which is caused by increased intracranial pressure secondary to pressure on the fetal head and a reduced rate of perfusion of fetal blood through the medulla. Oxygen administered routinely to the mother in the last 15 minutes or so before delivery may be a most effective means of preventing fetal birth injury.