Which device can deliver 100% O2 at 100 L/min and provides high flow with positive pressure?

Which device can deliver 100% O2 at 100 L/min and provides high flow with positive pressure?

• A. Partial Re-Breather
• B. Non Re-Breather
• C. Bag Valve Mask - O2 Powered
• D. Nasal Cannula

Answer: (C)

Delivering both a high oxygen concentration and positive airway pressure requires an oxygen-powered bag-valve mask. This device uses a reservoir and an oxygen supply; when you squeeze the bag, the patient receives a breath with nearly pure oxygen at a very high flow, and the tight mask seal creates positive pressure in the airway. That combination—high FiO2 up to 100% and a high flow with positive pressure—is what sets it apart from other mechanisms. Nasal cannulas deliver low to moderate oxygen concentrations and do not generate positive pressure. Masks that rely on a fixed flow (like partial rebreather or non-rebreather) can deliver high FiO2 but generally do not provide a true positive pressure ventilation and operate at lower, variable flows. The bag-valve mask, when oxygen-powered, is the device capable of delivering the 100% O2 at high flow and with positive pressure.

Delivering both a high oxygen concentration and positive airway pressure requires an oxygen-powered bag-valve mask. This device uses a reservoir and an oxygen supply; when you squeeze the bag, the patient receives a breath with nearly pure oxygen at a very high flow, and the tight mask seal creates positive pressure in the airway. That combination—high FiO2 up to 100% and a high flow with positive pressure—is what sets it apart from other mechanisms. Nasal cannulas deliver low to moderate oxygen concentrations and do not generate positive pressure. Masks that rely on a fixed flow (like partial rebreather or non-rebreather) can deliver high FiO2 but generally do not provide a true positive pressure ventilation and operate at lower, variable flows. The bag-valve mask, when oxygen-powered, is the device capable of delivering the 100% O2 at high flow and with positive pressure.