Susumu Uneda

Clinical Application of Extracellular Fluid Measurement Using 35S-Sodium Sulfate

ECF (extracellular fluid volume) was measured by 35S-sodium sulfate and the same time value of PV (plasma volume) was determined by 131I-RISA in each subject. In normal ECF was an average of 181 ml/kg, 6.21 l/m2 and PV was 49.1 ml/kg, 1.69 l/m2. Both values of ECF and PV in essential hypertension were almost the same as those in normal. In congestive heart failure ECF was 232 ml/kg, 7.51 l/m2 and PV was 55.8 ml/kg, 1.80 l/m2. In the patients with ascites or edema, ECF was 256 ml/kg, 8.69 l/m2 and PV was 53.0 ml/kg, 1.79 l/m2. The results of the measurement by the two compounds also corresponded to the conditions of the patients who showed electrolytes disorders (ACTH deficiency, SIADH) and was improved by treatment.