Which statement about large jet nebulizers is true regarding their operation?

Which statement about large jet nebulizers is true regarding their operation?

• A. They generate aerosol by passing compressed gas through a restricted orifice.
• B. They produce ultraviolet sterilization of aerosols.
• C. They require continuous electricity to operate.
• D. They do not involve any gas flow settings.

Answer: (A)

Jet nebulizers generate aerosol by forcing compressed gas through a very small orifice. This high-velocity gas creates a suction that pulls liquid up and shears it into a fine mist, which is then carried to the patient by the gas flow. The droplet size and output depend on the gas flow and the nozzle design, making the compressed-gas, restricted-orifice mechanism the key to how these devices work. Because they rely on pneumatic power, they don’t inherently require continuous electricity—the driving force is the compressed gas, not an electric motor. Ultraviolet sterilization isn’t part of how they operate, and the gas flow settings are indeed active controls that shape the aerosol, not something that’s irrelevant.

Jet nebulizers generate aerosol by forcing compressed gas through a very small orifice. This high-velocity gas creates a suction that pulls liquid up and shears it into a fine mist, which is then carried to the patient by the gas flow. The droplet size and output depend on the gas flow and the nozzle design, making the compressed-gas, restricted-orifice mechanism the key to how these devices work.

Because they rely on pneumatic power, they don’t inherently require continuous electricity—the driving force is the compressed gas, not an electric motor. Ultraviolet sterilization isn’t part of how they operate, and the gas flow settings are indeed active controls that shape the aerosol, not something that’s irrelevant.