Reduced Cardiac Output Renin- Angiotention-Aldosterone Axis Decreased Renal Perfusion Re enin Aldosterone Renal Na reabsorption Angiotension ↑ Plasma volume+↑ Renal retention of Na+h2o Transudation EDEMAReduced Cardiac Output Renin-Angiotention-Aldosterone Axis￾AngiotensionII