These academic materials from New Jersey City University outline the pathophysiology, diagnosis, and management of heart failure. The presentation defines the condition as a pumping deficiency that leads to insufficient oxygen delivery, often driven by risk factors like hypertension, diabetes, and lifestyle choices. Clinical insights differentiate between left-sided and right-sided failure, while providing a functional classification system to track the severity of patient symptoms. Diagnostic tools such as BNP blood tests and echocardiograms are highlighted alongside medical interventions ranging from pharmacological treatments to surgical revascularization. Finally, the sources emphasize the essential role of the nurse in monitoring hemodynamic stability, educating patients on sodium restriction, and tracking daily weight fluctuations to prevent re-hospitalization.