Secondary endpoints will include: all cause in-hospital mortality, physician and patient global score at 24 hours, twenty-four hour urine output after start of study drug infusion, weight change at 24 hours after start of study drug infusion, number of patients with K < 3.5meq at 24 hours, change in creatinine at 24 hours after start of study drug and at discharge or at 3 days, BNP levels at baseline, 3 hours after discontinuation of the study drug and at discharge or at 3 days, total diuretic dose of IV and PO Lasix at 48 hours and 72 hours after randomization or at discharge, changes in diastolic indices measured by transthoracic echocardiography 24 hours after the start of the study drug and 30 day post-randomization all cause mortality.