Effect of an Intravenous Sodium Chloride Load on Renal Hemodynamics and Electrolyte Excretion in Essential Hypertension

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Abstract
Excretion of infused sodium, chloride, and water increased proportionately in patients with progressively more severe grades of hypertension and of increased renal vascular resistance. These relationships held so long as renal plasma flow and glomerular filtration rate were not greatly impaired. The abnormality was characterized by increased renal tubular rejection of sodium, chloride and water.