Which oxygen delivery method is typically used for patients requiring higher concentrations of oxygen?

The Non-Rebreather Mask is typically used for patients needing higher concentrations of oxygen because it allows for the delivery of oxygen at a higher flow rate while minimizing the amount of exhaled carbon dioxide that re-enters the patient’s lungs. This mask has a reservoir bag that is maintained inflated, providing a concentrated oxygen supply, and features one-way valves that prevent exhaled air from entering the bag.

This is particularly essential in critical situations where a patient may be experiencing respiratory distress or hypoxia, as it can deliver up to 90-100% oxygen concentration.

In contrast, other methods such as a nasal cannula are limited to lower oxygen concentrations, typically delivering 24-44% oxygen. A facial mask can provide higher concentrations than nasal cannulas but generally does not reach the levels achieved by a Non-Rebreather Mask. Room air offers no supplemental oxygen at all, and while a simple facial mask can be beneficial in certain scenarios, it does not ensure the highest concentration needed in urgent contexts.