Intracellular potassium in man. A comparison of in vivo and in vitro measurement techniques

Publisher Website
Google Scholar
Abstract
In order to evaluate different methods of estimating intracellular content of potassium, determinations of potassium were made in erythrocytes, in muscle biopsy specimens and in the total body. The total body potassium (TBK) was related to body weight (Bwt), lean body mass (LBM), dry LBM, soft fat-free solids (SFFS), total body water (TBW) and calculated intracellular fluid (ICF). Sixty-two healthy subjects and 80 patients with various diseases and therapy known to influence the potassium metabolism were studied. Statistically significant correlations were found between potassium content in muscle biopsies related to fat-free solids and TBK/Bwt (r=+0.56, Pr=+0.58, Plt;0.01), dry LBM (r=+0.54, Pr=+0.68, Pr=+0.47, Pr=−0.31, P<0.05) was found in a group of untreated hypertensives. It is concluded that the quotients of TBK (TBK/LBM, TBK/TBW and TBK/SFFS) might be used in the study of intracellular potassium—at least in the study of patient groups.

This publication has 0 references indexed in Scilit: