Diuretic and Renal Effects of Vaprisol When Administered Along With Furosemide and Nesiritide Continuous Infusion

IV Vaprisol initially at 20 mg IV injection over 30 minutes, followed by a 20 mg IV infusion over the next 24 hours (i.e. 20 mg bolus, 20 mg continuous infusion approximately 24 hrs).

Placebo (will be given at the same rate of Vaprisol given in the treatment arm)