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Citation Information: J Clin Invest. 1972;51(9):2370-2379. https://doi.org/10.1172/JCI107049.
Abstract
Renal hemodynamics and tubular fractional sodium reabsorption (FSR) were evaluated by clearance techniques during acute and chronic extracellular volume expansion in man. (1 − V/GFR) × 100 was used as an index of proximal and (CH2O/V) × 100 as an estimate of distal fractional reabsorption. After acute loading with isotonic saline 37 ml/kg body wt, proximal FSR decreased by 4.8% and distal FSR decreased by 4.4%. After comparable chronic expansion by mineralocorticoids (“escape”), proximal FSR also decreased by 3.9%, but distal reabsorption was not altered.
Authors
Edward A. Alexander, David W. Doner Jr., R. Brewer Auld, Norman G. Levinsky
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