Studies in calcium metabolism

Abstract

ATTENTION has been directed to the presence of calcium in the serum in colloid combination and in crystalloid form. There is no direct information, however, as to whether the amount of calcium in the plasma is equal to that of the serum or whether it exists in similar forms in the two fluids. Further, there is some divergence of opinion as to the mere presence of calcium in the corpuscles, and in this connection the findings of different workers are by no means concordant. It is on account of the paucity of data and the lack of unanimity of opinion on these points that the present research has been carried out. The investigation includes quantitative analyses of the calcium in true plasma, citrated plasma, serum, and corpuscles, and a study of the physical state of the calcium in serum and in plasma.