A client with heart failure is admitted to the medical surgical unit with pneumonia. To reduce cardiac workload, which intervention should the nurse include in the plan of care?

A. Provide a bedside commode for toileting: Minimizing physical exertion helps reduce cardiac workload in a client with heart failure. Providing a bedside commode decreases the need for frequent trips to the bathroom, conserving energy and reducing strain on the heart. B. Assist with ambulation in the hallway: While ambulation promotes circulation and prevents complications of immobility, it increases oxygen demand and cardiac workload, which may not be safe for a client with acute heart failure. C. Teach to sleep in a side-lying position: Side-lying may improve comfort but does not significantly impact cardiac workload or oxygen consumption compared with upright or semi-Fowler positions that promote easier breathing. D. Encourage active range of motion exercises: Active exercises increase metabolic demand and cardiac workload. Although beneficial long-term, they should be limited during acute illness to prevent overexertion and exacerbation of heart failure.