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STUDIES ON ERYTHRO‐KINETICS IN INFANCY X. Red Cell Volume of Newborn Infants in Relation to Gestational Age
Author(s) -
Bratteby LarsEric
Publication year - 1968
Publication title -
acta pædiatrica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 115
eISSN - 1651-2227
pISSN - 0803-5253
DOI - 10.1111/j.1651-2227.1968.tb04665.x
Subject(s) - medicine , gestational age , gestation , red cell , volume (thermodynamics) , appropriate for gestational age , obstetrics , pregnancy , small for gestational age , biology , genetics , physics , quantum mechanics
Summary Red cell volume measurements were performed with a 51 Cr‐dilution method in 27 newborn infants with a gestational age of 222–295 days. The results were in agreement with and supplemented earlier findings. A positive correlation was found between red cell volume and gestational age. After 230 days (±10 days) of intrauterine life, the red cell volume varied between 45 and 100 ml. After a gestational period of 280 days (±10 days) the red cell volume was 120–190 ml. The main source of the large variation probably arises from errors in determining the gestational age, and variations in amount of placental transfusion.