On admission serum sodium and uric acid levels predict 30 day rehospitalization or death in patients with acute decompensated heart failure.

Given the predictive role of baseline Na and UA for early post-discharge outcome and the absence of significant changes in their levels during initial hospitalization, admission Na and UA can be considered as prognosticators of acute decompensated heart failure, which their prognostic significance cannot be affected by routine acute heart failure therapy.