Table 1.

Summary of baseline data and after correction of hyponatremia in patient 1 with RSW and baseline data in patients 2 and 3 with SIADH

Serum
Na, mmol/LK, mmol/LCl, mmol/LCO2, mmol/LBUN, mg/dCreatinine, mg/dUric Acid, mg/dPhosphate, mg/d
Patient 11254.889221412.53.4
Correction1381.5
Patient 21263.79725110.71.62.7
Patient 31313.89728140.61.83.5
Plasma
Renin, ng/ml/hAldosterone, ng/dl
Patient 11.6326.2
Patient 2<0.15<1.6
Patient 30.34.3
Urine
Osmolality, mosm/kgNa, mmol/LK, mmol/LFENa, %FEK, %FEUA, %FEPi, %
Patient 138639390.31837.923.1
Correction24.6
Patient 2534161281.8510.321.17.4
Patient 330399301.4815.816.710.5
  • Note persistence of hypouricemia and increased FEurate after correction of hyponatremia and elevated plasma renin and aldosterone levels and increased FEphosphate in patient 1 with RSW as compared to low plasma renin and aldosterone levels and normal FEphosphate in patients 2 and 3 with SIADH.