Mr. Santos, a 65-year-old Male, Was 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 Receiving Oxygen Therapy Via Nasal Cannula at 2 Liters Per Minute. He Has Been Prescribed Antibiotics for the Pneumonia and Bronchodilators for COPD