Where do most aerosol particles in the 5- to 10-µm range deposit?
a. Alveoli
b. Bronchioles
c. Central airways
d. Upper airways
ANS: D
Particles in the 5- to 10-µm range tend to become deposited in the oropharynx and hypopharynx, especially with the turbulence created by the transition of air as it passes around the tongue and into the larynx.
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According to ASHP guidelines, Risk level 1 includes all of the following products EXCEPT those that are:
A) Stored at room temperature and completely administered within 28 hours of preparation. B) Unpreserved, sterile, and prepared for administration to more than one patient and contain suitable preservatives. C) Prepared by a closed-system aseptic transfer of sterile, nonpyrogenic, finished pharmaceuticals obtained from licensed manufacturers into sterile final containers obtained from licensed manufacturers. D) Prepared by combining multiple ingredients, sterile or non-sterile, by using an open-system transfer before terminal sterilization.
Using a 10% suspension of bleach to clean a work bench is considered
A) infection control. B) disinfection. C) chemical sterilization. D) sterilization.