Sodium and Potassium Exchanges During Dialysis of Bilaterally Nephrectomized Dogs.

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Abstract
Conclusions 1. Bilaterally nephrectomized dogs subjected to dialysis, under the conditions described, tend to gain Na from the dialyzing fluid and lose K into the fluid while at the same time measurements of the ECF volume by radiosulfate suggest a tendency toward a decrement of total ECF Na and an increment of total ECF K. 2. These findings are in keeping with a tendency toward a gain of cellular Na and a loss of cellular K. 3. A movement of Na into cells may occur even in the absence of a positive exogenous Na balance.