To maintain a proper flow of oxygen with a nonrebreather mask, what flow rate is required?

A nonrebreather mask is designed to deliver a high concentration of oxygen to patients who are experiencing severe respiratory distress or hypoxia. To ensure that the reservoir bag of the mask remains inflated and that the patient receives a sufficient level of oxygen, a flow rate of at least 15 liters per minute (LPM) is required. This high flow rate helps prevent the inhalation of room air, thereby maximizing the delivery of oxygen since the mask includes one-way valves that prevent the exhaled air from entering the bag.

When using a nonrebreather mask, maintaining the proper flow rate of 15 LPM ensures that there is an adequate supply of oxygen available for the patient and that the mask functions as intended. This is critical in emergency situations where patients need immediate and effective oxygen therapy. Other flow rates, like those below 15 LPM, may not provide the same level of oxygen concentration, which compromises the treatment effectiveness for patients in critical need of oxygen.