Eldon Martin is a 75-year-old retired Marine Corps officer. He smoked cigarettes most of his adult life, but quit 10 years ago when he learned he had allergy-induced asthmatic lung disease. He comes to the hospital today with a high fever, productive cough, and pain in his chest. He is diagnosed with pneumonia.What additional assessment findings would be important for the nurse to gather in relation to oxygenation concerns? Select all that apply.A. Pulse oximetry readingB. Arterial blood gasC. Normal dietD. Lung soundsE. Number of years of smoking