Which device dispenses doses of medication in the form of a fine mist for inhalation?

• A. Metered Dose Inhaler
• B. Nasal Cannula
• C. Nebulizer
• D. Non-Rebreather

Answer: (C)

Nebulizer turns liquid medication into a fine aerosol that is inhaled through a mouthpiece or mask. This mist is small enough (roughly 1–5 microns) to reach the lower airways, making it especially effective for delivering bronchodilators or mucus-thinning agents over several minutes. It’s often chosen when a patient can’t coordinate breathing with an inhaler or needs a larger, continuous dose.

By contrast, a metered-dose inhaler releases a pre-measured spray and usually requires good timing and inhalation (often with a spacer to help delivery). The nasal cannula and non-rebreather are oxygen-delivery devices, not methods for delivering inhaled medications as a mist.