Differential diagnosis heart failure Edema initially occurs at lower part of the body(lower extremities) symmetric location The presence of heart diseases cardiac enlargement gallop rhythm dyspnea basilar rales venous distention hepatomegaly Noninvasive tests may be helpful echocardiography radionuclide angiographyDifferential diagnosis Heart Failure • Edema initially occurs at lower part of the body (lower extremities) • symmetric location • The presence of heart diseases cardiac enlargement gallop rhythm dyspnea basilar rales venous distention hepatomegaly • Noninvasive tests may be helpful echocardiography radionuclide angiography