Your patient is a 55-year-old female who presents with diffi…

Your patient is a 55-year-old female who presents with difficulty breathing.  She has a history of smoking.  Her vital signs are pulse 112 and regular, BP 148/88, O2 Sat 94%, and respirations 22 and regular. As you prepare to administer oxygen to her, which airway device would be the most appropriate choice?