A physician wants to deliver a therapeutic aerosol to the central and lower airways. To help ensure maximum deposition in this area, you would select an aerosol generator with an MMAD in what range?

Question

Quizplus · Accepted Answer

Aerosols with an MMAD between 2 to 5 µm have been shown to have the highest deposition in the central and lower airways. This is because particles in this size range are small enough to easily move past the upper airways but large enough to not be exhaled immediately, allowing them to deposit in the targeted areas. Aerosols with an MMAD outside of this range may deposit in other areas of the respiratory tract or be exhaled before reaching the targeted area.

A Physician Wants to Deliver a Therapeutic Aerosol to the Central