Congestive heart failure is a common clinical disorder that results in pulmonary vascular congestion and reduced cardiac output. Common symptoms include shortness of breath and fatigue and should be considered as a differential diagnosis for any adult patient who presents with dyspnea or respiratory failure.Pharmacological treatment of congestive heart failure is based on increasing diuresis as well as the termination of the renin-angiotensin system to prevent long-term complications. By terminating this pathway and increasing diuresis there is less fluid build-up.