For nasal injury patients requiring oxygen, which device is most appropriate?

• A. Nasal cannula
• B. Venturi mask
• C. Non-rebreather mask
• D. Simple face mask

Answer: (C)

When you need to deliver high-concentration oxygen to someone with nasal or facial injuries, you want a method that provides the highest reliable oxygen concentration without placing stress or irritation on the injured nasal tissues. The non-rebreather mask fits this need because its design uses a reservoir bag and one-way valves to deliver near-maximum oxygen concentration (approaching 100% with proper fit) and it seals around the nose and mouth rather than into the nostrils. This helps minimize contact with the injured nose while ensuring the patient gets strong oxygen support quickly.

In contrast, a nasal cannula sits in the nostrils and can irritate nasal injuries and deliver only low to moderate FiO2. A Venturi mask can provide precise FiO2 but typically maxes out at moderate concentrations, which may be insufficient in acute trauma. A simple face mask offers moderate FiO2 but is less reliable and comfortable than a non-rebreather for high-oxygen needs. Therefore, for nasal injuries requiring oxygen, the non-rebreather mask is the best choice.