Determination of pH Values in the Umbilical Cord Blood of Newborn Infants Delivered by Women with Toxemia of Late Pregnancy

Publisher Website
Google Scholar
Abstract
Electrometric determinations of the pH values were made in the umbilical cord blood of 106 fully developed newborn infants. There were 22 cases with toxemia of late pregnancy (18 cases of pre-eclampsia and 4 cases of chronic hypertension) and 84 comparative cases among them. The average value was pH 7.21 in the umbilical venous blood (22 cases) and 7.13 in the umbilical arterial blood (11 cases) for newborn infants of patients with toxemia. In comparison with these findings an average value of pH 7.35 in the umbilical venous blood (84 cases) and of pH 7.29 in the umbilical arterial blood (39 cases) was observed for normal newborn infants. The differences between these 2 groups were statistically significant (S = 99.9%). The average arteriovenous difference amounted to pH 0.08 for newborn infants in patients with toxemia and to pH 0.07 without statistical signification for normal newborn infants.