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abbyraelax abbyraelax
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Posts: 528
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6 years ago
A physician wants to deliver a therapeutic aerosol to the upper airway (nose, larynx, trachea). To help ensure maximum deposition in this area, you would select an aerosol generator with an MMAD in what range?
 
  a. 5 to 50 m
  b. 2 to 5 m
  c. 1 to 3 m
  d. Less than 1 m



Q. 2  A physician wants to deliver a therapeutic aerosol to the lung parenchyma (alveolar region). To help ensure maximum deposition in this area, you would select an aerosol generator with an MMAD in what range?
 
  a. 5 to 20 m
  b. 2 to 5 m
  c. 1 to 3 m
  d. Less than 1 m



Q. 3  A physician wants to deliver a therapeutic aerosol to the central and lower airways. To help en-sure maximum deposition in this area, you would select an aerosol generator with an MMAD in what range?
 
  a. 5 to 20 m
  b. 2 to 5 m
  c. 1 to 3 m
  d. Less than 1 m



Q. 4  Where do most aerosol particles in the 1- to 5-m range deposit?
 
  a. Alveoli
  b. Bronchioles
  c. Central airways
  d. Upper airways



Q. 5  Which of the following techniques will increase aerosol deposition by sedimentation in the lungs?
 
  a. High inspiratory flow
  b. Short inspiratory time
  c. 10-sec breath-hold
  d. Short expiratory time
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Replies
wrote...
6 years ago
(Answer to Q. 1)  ANS: A

(Answer to Q. 2)  ANS: D

(Answer to Q. 3)  ANS: B

(Answer to Q. 4)  ANS: C
Sedimentation occurs mostly in the central airways and increases with time, affecting particles down to 1 m in diameter.

(Answer to Q. 5)  ANS: C
A 10-sec breath-hold can increase aerosol deposition as much as 10 and increase the ratio of aerosol deposited in lung parenchyma to central airway by four-fold.
abbyraelax Author
wrote...
6 years ago
So smart
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