Pulmonary edema is caused by cardiogenic and non-cardiogenic causes. It develops and presents as sudden onset dyspnea, orthopnea, cough and edema. In pulmonary edema there is sudden onset of fluid accumulation which results in disruption of air exchange. The pathophysiology in cardiac and non-cardiac causes varies. In cardiogenic causes increased pulmonary capillary pressure occurs due to left ventricular failure. While in non-cardiac causes the cause is injury to lung parenchyma occurs. cardiac causes of pulmonary edema include LVF and RVF. A left ventricular failure presents as: respiratory distress, tachypnea, bilateral basilar crepts, cardiac wheeze, tachycardia, displaced apex beat and prominent third heart sound. In RVF signs of edema present as: right heave, raised JVP, hepatomegaly and peripheral edema.