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Measurement of extracellular fluid volume with 51Cr EDTA Masuhiko Takaori 1 , Kyoko Fujiwara 1 , Hisashi Etoh 1 , Hirohumi Yano 1 , Mitsuyasu Kagiyama 2 1Kawasaki Medical School, Department of Anesthesiology 2Kawasaki Medical School, Computor Centre pp.309-312
Published Date 1985/3/15
DOI https://doi.org/10.11477/mf.1404204619
  • Abstract
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To establish an accurate determination of Eel,volume, 51Cr EDTA was injected intraveously in 9 healthy patients undergone minor surgery and then its concentration in the plasma was measured serially. An information criterion was used to analyze body fluid compartments which 51Cr EDTA should distribute and non-linear parameter estima-tion was applied to obtain an approximating equation for changes of 51Cr EDTA concentration after the injection. Previous data were recomfirmed that 51Cr EDTA would distribute in the intravas-cular, the ECF space, in the partial intracellular space, and the extrarenal space (urine). Even distribution of 51Cr EDTA would be estimated to be completed in the ECF space within 24 minutes and in the intracellular fluid space within 64 minutes.

EDTA space was estimated to be 1.41 times greater than the physiological ECF space. Our data supported that "O" time concentration of 51Cr EDTA in the ECF could be obtained by an extrapolating method from 51Cr EDTA concen-trations in plasma between 30-60 minutes after the single injection.


Copyright © 1985, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

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