What is the rate of oxygen for a non-rebreather mask (NRM)?

The correct rate of oxygen for a non-rebreather mask (NRM) is 12-15 liters per minute. This flow rate is crucial for ensuring that the mask delivers a high concentration of oxygen to the patient while minimizing the risk of rebreathing exhaled carbon dioxide.

The principle behind the non-rebreather mask is that it is designed to provide oxygen-rich air to the patient. By setting the flow rate within the 12-15 LPM range, we achieve a sufficient reservoir of oxygen in the mask's bag, which allows patients to inhale a high fraction of inspired oxygen (FIO2) of around 60-100%. This is particularly important in emergency situations where patients may suffer from respiratory distress or hypoxia.

Using a lower flow rate would not effectively fill the reservoir bag, leading to the dilution of oxygen concentration and potentially compromising the effectiveness of the mask. Thus, maintaining the appropriate flow rate is essential for optimal patient outcomes in emergencies.