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BLOOD CALCIUM AND PHOSPHORUS IN THE NEWBORN

W. R. TODD, PH.D.; E. G. CHUINARD, M.D.; M. T. WOOD, M.S.
Am J Dis Child. 1939;57(6):1278-1287. doi:10.1001/archpedi.1939.01990060058006.
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Most investigations on the calcium and phosphorus content of the blood of newborn infants have been approached through studies of rickets and tetany. The results of such investigations revealed that the figures for total serum calcium are below the accepted normal standard in tetany but remain unchanged in rickets. These same studies have helped to establish normal values of calcium and phosphorus for the infant and to develop technics for the determination of these constituents. Many papers dealing with this subject have substantiated the findings of previous authors that the newborn child has 1 to 2 mg. more calcium per hundred cubic centimeters of serum than does the adult; this is particularly noticed in the relative values for mother and child immediately after parturition.

The work presented in this paper was undertaken as part of a general study dealing with the nutritional status, particularly in relation to rickets, of preschool

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