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Article
April 1934

STUDIES OF THE BLOOD IN NORMAL PREGNANCY: V. CONDUCTIVITY, TOTAL BASE, CHLORIDE AND ACID-BASE EQUILIBRIUM

Author Affiliations

CHICAGO; ST. LOUIS

From the Department of Obstetrics and Gynecology, Washington University School of Medicine, the St. Louis Maternity Hospital, the Department of Obstetrics and Gynecology, University of Chicago, and the Chicago Lying-in Hospital and Dispensary.

Arch Intern Med (Chic). 1934;53(4):527-539. doi:10.1001/archinte.1934.00160100049003
Abstract

Studies of the acid-base equilibrium of the plasma in pregnancy have been incomplete either because they were based on too few patients or because all of the various cations (sodium, potassium, calcium, magnesium or total base) and anions (Cl-, HCO3-, HPO4-, SO4-, protein and organic acid) were not determined. Stander and his co-workers made a complete study of the acid-base equilibrium in three pregnant women. Oard and Peters made a similar study in twelve pregnant women, but omitted determinations of SO4- and organic acid. Numerous other reports of studies of the carbon dioxide content and, in a few instances, of ph have been published, but the number of reports of total base in pregnancy is extremely small. However, similar reports on nonpregnant persons are also few and are based on a study of a relatively small number of subjects.

In table 1 are listed some

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