Inclusion Criteria:  Hospitalized with a diagnosis of heart failure Patients ≥ 18 years of age able to provide informed consent and comply with study procedures.  Exclusion Criteria:  Inability to place Foley catheter or IV catheter Hemodynamic instability Dyspnea due primarily to non-cardiac causes Acute infection with evidence of systemic involvement Inability to follow instructions or comply with follow-up procedures. Other concomitant disease or condition that investigator deems unsuitable for the study Enrollment in another interventional trial during the index hospitalization Life expectancy less than 3 months