How does a jet nebulizer generate aerosol droplets?

How does a jet nebulizer generate aerosol droplets?

• A. By forcing compressed gas through the liquid medication
• B. By heating the liquid to produce vapor
• C. By ultrasonic vibrations
• D. By mixing with propellants

Answer: (A)

Jet nebulizers create aerosol droplets by using a high-velocity stream of compressed gas (air or oxygen) that is directed through a small nozzle, pulling liquid medication from the reservoir into the gas flow. The shear and turbulence at the nozzle break the liquid into tiny droplets, forming a fine mist that can be inhaled. The droplet size depends on the gas flow and device design, but the key idea is that atomization occurs because the moving gas shears the liquid into droplets. Heating would turn the liquid into vapor, ultrasonic devices use vibrations to produce droplets, and propellants are used in inhalers, not jet nebulizers.

Jet nebulizers create aerosol droplets by using a high-velocity stream of compressed gas (air or oxygen) that is directed through a small nozzle, pulling liquid medication from the reservoir into the gas flow. The shear and turbulence at the nozzle break the liquid into tiny droplets, forming a fine mist that can be inhaled. The droplet size depends on the gas flow and device design, but the key idea is that atomization occurs because the moving gas shears the liquid into droplets. Heating would turn the liquid into vapor, ultrasonic devices use vibrations to produce droplets, and propellants are used in inhalers, not jet nebulizers.