What should the flow rate be set for a Non-Rebreather Mask?

The correct flow rate for a Non-Rebreather Mask is typically set between 12-15 liters per minute. This range is essential because the primary purpose of the Non-Rebreather Mask is to deliver a high concentration of oxygen to patients who are in respiratory distress or experiencing hypoxia.

When set within this flow rate, the mask provides sufficient oxygen flow to keep the reservoir bag inflated. This ensures that the patient receives a high percentage of oxygen with minimal dilution from room air. A flow rate too low might cause the bag to deflate during inhalation, leading to the patient rebreathing carbon dioxide, which could be detrimental to their condition. Therefore, the 12-15 L/min range strikes the right balance, ensuring effective oxygenation while minimizing the risk of CO2 retention.

Higher flow rates, while they may seem advantageous for oxygen delivery, might not be necessary or effective beyond this range, especially in typical clinical scenarios.