The client is a 49-year-old who reports flu-like symptoms including fever and chest congestion for 4 days. He came to the emergency department (ED last night when he was having more difficulty breathing. He has a history of one-half pack a day cigarette smoking for 20 years. He has no significant medical or surgical history. The clients oxygen saturation remains 85-90% after 15 minutes of oxygen therapy. The nurse should place the client in dropdownposition to promote dropdown