Enhancing post-CCU functional endurance with physical activity

M r. G is a 55-yearold male with a left ventricular ejection fraction of 10% (normal, 50%70%).1 He was transported to the ED last evening due to unintentional weight gain, fatigue, orthopnea, paroxysmal nocturnal dyspnea, and dyspnea on exertion. His oxygen saturations on room air were 89% sitting upright and 80% supine. He was admitted to the coronary care unit (CCU) with a diagnosis of heart failure with reduced ejection fraction (HFrEF) and started on a continuous infusion of I.V. furosemide. He is currently on supplemental oxygen to keep his SpO2 above 95%. Mr. G is spending most of his time in the hospital resting in his bed or chair.