Which of the following factors affect pulmonary deposition of an aerosol? 1. Size of the particles 2. Shape and motion of the particles 3. Physical characteristics of the airways 4. Class of medication being delivered
a. 1 and 4 only
b. 1 and 3 only
c. 2, 3, and 4 only
d. 1, 2, and 3 only
ANS: D
Whether aerosol particles that are inhaled into the lung are deposited in the respiratory tract de-pends on the size, shape, and motion of the particles and on the physical characteristics of the airways and breathing pattern.
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