Mr. Santos, a 60-year-old Male, Is Admitted to the Medical-surgical Unit with a Diagnosis of Pneumonia. He Has a History of Chronic Obstructive Pulmonary Disease (COPD) and Is a Smoker. the Patient Is Experiencing Shortness of Breath, Productive Cough with Greenish Sputum and Fever. He Is Receiving Oxygen Therapy Via Nasal Cannula and Is Started on Antibiotic Therapy