The corrected bromide space (extracellular volume) in the newborn.

M EANS OF MEASURING the changes in dis tribution of fluid within body com partments of the newborn and older infant are needed. Determination of the bromide space has proven to be a simple and accu rate method of delineating one of these com partments, the approximate extracellular space. We have utilized this method to de termine the extracellular volume of normal newborns during the first day of life. It is hoped that thisstudy will prove a useful baseline for work in abnormal states of hy dration in the newborn. These abnormal states include the infant born of the diabetic mother, where edema