Use of bioelectrical impedance analysis measurements in the clinical management of patients undergoing dialysis

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Abstract
The use of bioelectrical impedance analysis (BIA) in patients with end-stage renal disease who are receiving dialysis provides researchers with two important applications: 1) a biological model in which the underlying assumptions of BIA can be tested, and 2) if valid, a tool that can be used to improve the clinical management of patients receiving dialysis. We review the rationale of and purpose for using BIA in the dialysis population, the physiologic changes that occur during dialysis that influence BIA measurements, and last, conclusions reached from the current scientific literature.