Which oxygen device operates at 10-15 LPM?

Which oxygen device operates at 10-15 LPM?

• A. Nebulizer
• B. Nasal Cannula
• C. Non-Rebreather Mask
• D. Bag Valve Mask

Answer: (C)

Delivering high-concentration oxygen relies on devices that can supply a substantial, consistent flow to keep the oxygen-rich reservoir full and minimize dilution by room air. The non-rebreather mask uses a resevoir bag and one-way valves, so it requires a relatively high flow—about 10 to 15 liters per minute—to keep the bag inflated and to flush exhaled gas out. That high flow enables the patient to inhale oxygen-rich gas with minimal mixing from room air, yielding a high oxygen concentration when rapid, strong oxygenation is needed. Nasal cannulas operate at low flows, up to about 6 L/min, and provide a lower FiO2, making them unsuitable for achieving the highest oxygen concentrations. Nebulizers are primarily for delivering medications as a mist; while they can be run with oxygen, the flow is not fixed at a high rate for oxygen delivery and the device’s purpose isn’t to provide a specific FiO2. Bag-valve masks can deliver high oxygen concentrations as well, but they’re manually operated and not defined by a fixed 10-15 L/min flow in routine oxygen therapy; their strength is ventilating a patient who isn’t breathing or isn’t breathing adequately rather than serving as a standard high-flow oxygen delivery device. Thus, the non-rebreather mask is the device associated with the 10-15 L/min flow range.

Delivering high-concentration oxygen relies on devices that can supply a substantial, consistent flow to keep the oxygen-rich reservoir full and minimize dilution by room air. The non-rebreather mask uses a resevoir bag and one-way valves, so it requires a relatively high flow—about 10 to 15 liters per minute—to keep the bag inflated and to flush exhaled gas out. That high flow enables the patient to inhale oxygen-rich gas with minimal mixing from room air, yielding a high oxygen concentration when rapid, strong oxygenation is needed.

Nasal cannulas operate at low flows, up to about 6 L/min, and provide a lower FiO2, making them unsuitable for achieving the highest oxygen concentrations. Nebulizers are primarily for delivering medications as a mist; while they can be run with oxygen, the flow is not fixed at a high rate for oxygen delivery and the device’s purpose isn’t to provide a specific FiO2. Bag-valve masks can deliver high oxygen concentrations as well, but they’re manually operated and not defined by a fixed 10-15 L/min flow in routine oxygen therapy; their strength is ventilating a patient who isn’t breathing or isn’t breathing adequately rather than serving as a standard high-flow oxygen delivery device.

Thus, the non-rebreather mask is the device associated with the 10-15 L/min flow range.