Validation of Bioimpedance Analysis as a Measure of Change in Body Cell Mass as Estimated by Whole‐Body Counting of Potassium in Adults

Abstract

BIA is a useful surrogate for measuring changes in BCM in clinical circumstances. Because TBK assesses only intracellular potassium, whereas BIA reflects all intracellular cations, the underprediction of BCM change by BIA compared with TBK could be related to changes in intracellular potassium concentration as a result of malnutrition or its treatment.