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Aerosol Therapy Questions with Correct Answers
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Aerosol Therapy Questions with Correct Answers
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Aerosol Therapy Questions with Correct AnswersAerosol therapy advantages Correct Answer-A smaller dose can be
targeted to the site of action
The onset action occurs more quickly
Therapeutic effect is achieved with fewer systemic side effects
Systemic absorption is limited
Primary factors affecting aerosol delivery Correct Answer-Deposition
Inertia
Gravity
Diffusion
Aerosol definition Correct Answer-Is composed of particles suspended
in air
Factors that increase impaction of particles larger than 2um in the larger
airways Correct Answer-Turbulent air flow
Complex passageways
Bifurcation of the airways
Inspiratory flows greater than 30Lpm
, Diffusion or Brownian movement Correct Answer-Is the primary
mechanism of deposition of particles less than 3um in the airway
As gas reaches the distal regions, the flow stops.
Geometric standard deviation (GSD) Correct Answer-Is the measure of
the magnitude of variation of particle size distribution
Heterodisperse aerosols Correct Answer-Aerosols with particles of
different sizes
Monodisperse aerosols Correct Answer-Particles of similar sizes
Deposition Correct Answer-Only fraction of emitted aerosol or emitted
dose will be inhaled
Only fraction of inhaled (respirable dose) is deposited in lungs
Portion of inhaled mass that can reach lower airways is "respirable
mass"
Deposition influenced by Correct Answer-Inspiratory flow rate
Flow pattern
Respiratory rate
Inhaled volume
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