A method for simultaneous measurements of body water compartments and potassium pool in anuric subjects

A method is described for simultaneous measurement of total body water, extracellular body water, plasma volume, exchangeable potassium pool employing radioactive tracers (3H2O, Na235SO4, 42KCl and 125I human serum albumin). Some suggestions are made that are particularly applicable to routine use in anuric and/or dialyzed patients. The observed values fit well with the values predicted for a reference subject.