CDH Paramedic Entrance Practice Exam

A non-rebreather mask is specifically designed to deliver high concentrations of oxygen to patients who are in need of respiratory support, typically in emergency situations. The mask is equipped with a reservoir bag that allows for the storage of oxygen, and it can deliver approximately 10 to 15 liters of oxygen per minute. This high flow rate is crucial because it ensures that the patient receives a sufficient volume of oxygen, enhancing oxygenation and helping to improve the overall oxygen saturation in the blood.

Lower flow rates, such as those listed in some of the other options, would not provide the high concentration of oxygen needed for severe hypoxia or respiratory distress. A non-rebreather mask can deliver nearly 90-100% oxygen concentration during operation, which is essential for effective treatment in acute medical situations. Thus, the standard for flow rate aligns well with the 10 to 15 liters per minute range, making that the most accurate choice.