Chang A, Wood C
Am J Obstet Gynecol. 1976 May 1;125(1):61-4.
This paper presents the results of measurements of the acid-base and gaseous status of maternal and fetal capillary blood at the time of amniotomy, before the onset of labor. The correlation coefficient between maternal and fetal bicarbonate concentration is 0.6, and that between maternal and fetal PCO2 is 0.31. From the results obtained, as well as from a survey of other work in the field, it is proposed that the diffusion of carbon dioxide across the placenta could not explain some of the findings and that bicarbonate concentrations equilibrate across the placenta.
本文介绍了在人工破膜时、临产前对母体和胎儿毛细血管血的酸碱及气体状态进行测量的结果。母体和胎儿碳酸氢盐浓度之间的相关系数为0.6，母体和胎儿PCO₂之间的相关系数为0.31。根据所获得的结果以及对该领域其他研究工作的调查，有人提出二氧化碳在胎盘两侧的扩散无法解释某些发现，并且碳酸氢盐浓度在胎盘两侧达到平衡。
