Exchangeable Potassium Content of the Body in Congestive Failure

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Abstract
The increase in body weight in congestive heart failure is generally attributed to the retention of sodium and water in the extracellular compartment. Important changes also occur in the intracellular space, particularly in the metabolism of potassium. The isotope-dilution technic permits more precise determination of the exchangeable potassium content of the body in congestive failure before and during diuresis. The results of 27 such determinations in 11 patients with congestive heart failure are correlated with the clinical status of the patient and the serum concentration.