Aerosol Deposition Quiz
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Questions and Answers

What is the relationship between oropharyngeal deposition and the factors Da and Q?

  • Oropharyngeal deposition is inversely related to Da and directly related to Q
  • Oropharyngeal deposition is independent of both Da and Q
  • Oropharyngeal deposition is solely determined by the factor Q
  • Oropharyngeal deposition follows the relationship Da2Q, increasing both factors increases oropharyngeal deposition (correct)

    • How does inspiratory airflow affect aerosol deposition in the lungs?

  • Lower inspiratory airflow decreases particle dispersal, increasing Da and requiring a balance of Q
  • Higher inspiratory airflow provides energy for particle dispersal, decreasing Da and requiring a balance of Q (correct)
  • Inspiratory airflow has no significant impact on aerosol deposition in the lungs
  • Higher inspiratory airflow increases Da and reduces Q, leading to greater lung deposition

    • How does particle diameter influence agglomerate strength of the powder?

  • Particle diameter has no effect on agglomerate strength
  • Smaller particle diameter leads to weaker agglomerate strength
  • Greater particle diameter results in weaker agglomerate strength (correct)
  • Agglomerate strength increases with particle diameter

    • How does the grid help with dispersing the powder formulation in the aerosol?

    <p>The grid helps straighten airflow and reduces turbulent airflow</p> Signup and view all the answers

    What is the effect of increasing both factors Da and Q on oropharyngeal deposition?

    <p>Higher chance of oropharyngeal deposition and less chances of lung deposition</p> Signup and view all the answers

    How does inspiratory airflow affect aerosol deposition in the lungs?

    <p>Provides energy for particle dispersal, decreasing Da and requiring a balance of Q</p> Signup and view all the answers

    What is the effect of an increase in work of adhesion on agglomerate strength of the powder?

    <p>Increase in agglomerate strength</p> Signup and view all the answers

    How does the grid assist in dispersing the powder formulation in aerosol?

    <p>Helps with dispersing the powder formulation, straightens airflow, and reduces turbulent airflow</p> Signup and view all the answers

    What is the relationship between particle diameter and agglomerate strength of the powder?

    <p>The greater the particle diameter, the weaker the agglomerate strength</p> Signup and view all the answers

    How does inspiratory airflow affect oropharyngeal deposition of aerosol powder?

    <p>Increasing inspiratory airflow increases the chances of oropharyngeal deposition</p> Signup and view all the answers

    How does an increase in packing fraction affect agglomerate strength of the powder?

    <p>An increase in packing fraction leads to an increase in agglomerate strength</p> Signup and view all the answers

    How does the lactose carrier influence the dispersion of the powder formulation in the aerosol?

    <p>Smaller particles will retain in the canister or be attached to the canister walls if no lactose is present</p> Signup and view all the answers

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