Which component provides high-flow oxygen by bypassing the vaporizers and delivering gas directly to the circuit?

Which component provides high-flow oxygen by bypassing the vaporizers and delivering gas directly to the circuit?

• A. Reservoir Bag
• B. Ventilator Controls
• C. Oxygen Flush Valve
• D. CO2 Absorber

Answer: (C)

The oxygen flush valve provides high-flow oxygen by bypassing the vaporizers and delivering gas directly into the breathing circuit. It taps straight from the fresh gas (oxygen) supply and opens to flood the circuit with a large volume of O2, independent of the vaporizer settings. This is used to rapidly oxygenate or flush the circuit, quickly re-expand the lungs, or clear the circuit after disconnections. The flow is much higher than normal fresh gas delivery, and because it bypasses the vaporizers, the delivered gas is not influenced by vaporizer output. The reservoir bag is a storage/ventilation accessory, not a bypass for high-flow O2. Ventilator controls govern programmed breaths, and the CO2 absorber removes carbon dioxide from exhaled gas, not deliver oxygen.

The oxygen flush valve provides high-flow oxygen by bypassing the vaporizers and delivering gas directly into the breathing circuit. It taps straight from the fresh gas (oxygen) supply and opens to flood the circuit with a large volume of O2, independent of the vaporizer settings. This is used to rapidly oxygenate or flush the circuit, quickly re-expand the lungs, or clear the circuit after disconnections. The flow is much higher than normal fresh gas delivery, and because it bypasses the vaporizers, the delivered gas is not influenced by vaporizer output. The reservoir bag is a storage/ventilation accessory, not a bypass for high-flow O2. Ventilator controls govern programmed breaths, and the CO2 absorber removes carbon dioxide from exhaled gas, not deliver oxygen.