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Author Question: Most nebulizers used in respiratory care produce which type of aerosol suspension? a. ... (Read 52 times)

jhjkgdfhk

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on: Jul 16, 2018
Most nebulizers used in respiratory care produce which type of aerosol suspension?
 
  a. Monodisperse
  b. Microaerosol
  c. Heterodisperse
  d. Macroaerosol

Question 2

What measure is used to identify the particle diameter, which corresponds to the most typical settling behavior of an aerosol?
 
  a. Mean mass velocity coefficient (MMVC)
  b. Logarithmic standard diameter (LSD)
  c. Mean mass aerodynamic diameter (MMAD)
  d. Geometric standard deviation (GSD)


IRincones

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: C
Most aerosols found in nature and used in respiratory care are composed of particles of different sizes, described as heterodisperse.

Answer to Question 2

ANS: C
Because medical aerosols contain particles of many different sizes (are heterodisperse), the aver-age particle size is expressed with a measure of central tendency, such as MMAD for cascade impaction or volume median diameter (VMD) for laser diffraction.


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