Which Oxygen Delivery System Is Most Appropriate for Ensuring Precise Oxygen Concentration for This Patient

a 65-year-old Male Patient with Chronic Obstructive Pulmonary Disease (COPD) Is Admitted to the Hospital with an Acute Exacerbation. He Is Experiencing Increased Shortness of Breath and Hypoxemia. the Healthcare Team Decides to Administer Supplemental Oxygen to Manage His Hypoxemia