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April 1936

VALUES FOR RED BLOOD CELLS OF AVERAGE INFANTS AND CHILDREN

Am J Dis Child. 1936;51(4):775-791. doi:10.1001/archpedi.1936.01970160013002
Abstract

The determination of the amount of hemoglobin and the number of red cells in the venous blood of normal persons has occupied the attention of investigators for many years. More recently the estimation of the volume of packed cells has been an added procedure. Most of the observations have been limited to adults, with the result that information regarding the range of values in the blood of infants and children is relatively incomplete. Since alteration in the normal values serves as a basis for the laboratory diagnosis of the various kinds of anemia, practical significance is given to the establishment of the boundaries of the normal range. We have recently reported the blood values which we obtained on a series of normal adults.1

The present study has been made on a group of 533 children of both sexes, ranging in age from birth to 13 years. The amount of

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