Which statement about High Frequency Jet Ventilation is true?

Which statement about High Frequency Jet Ventilation is true?

• A. It uses a standard exhalation valve
• B. It delivers gas via a high-pressure jet with no exhalation valve
• C. It cannot be used in ARDS
• D. It uses a single-lumen endotracheal tube

Answer: (B)

High Frequency Jet Ventilation works by delivering gas as short, high-velocity jets into the airway, while exhalation occurs passively through the airway without an active exhalation valve. The rapid jets create very small tidal volumes, and gas exits the lungs through the expiratory path rather than through a valved mechanism. This combination—gas delivered via a high-pressure jet and no active exhalation valve—is what defines the mode. This approach can support gas exchange with potentially less volutrauma compared with conventional ventilation, especially in delicate neonatal lungs. The other statements don’t fit: HFJV is not defined by a traditional exhalation valve, it can be used in ARDS in select situations, and although a single-lumen endotracheal tube is commonly used, that is not the defining feature of this ventilation mode.

High Frequency Jet Ventilation works by delivering gas as short, high-velocity jets into the airway, while exhalation occurs passively through the airway without an active exhalation valve. The rapid jets create very small tidal volumes, and gas exits the lungs through the expiratory path rather than through a valved mechanism. This combination—gas delivered via a high-pressure jet and no active exhalation valve—is what defines the mode.

This approach can support gas exchange with potentially less volutrauma compared with conventional ventilation, especially in delicate neonatal lungs. The other statements don’t fit: HFJV is not defined by a traditional exhalation valve, it can be used in ARDS in select situations, and although a single-lumen endotracheal tube is commonly used, that is not the defining feature of this ventilation mode.