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Which of the following methods best ensures that pathogens are reduced to safe levels on surfaces in a healthcare setting?
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11. Controlling Microbial Growth
Introduction to Controlling Microbial Growth
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Physical methods used to control microbial growth include all of the following except?
A
Refrigeration.
B
Air filtration.
C
Liquid chemical disinfectants.
D
Steam (moist heat).
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Understand the concept of microbial growth control: Microbial growth control involves methods to inhibit or kill microorganisms to prevent their spread and contamination.
Identify physical methods of microbial control: Physical methods typically involve non-chemical approaches such as temperature control, filtration, and radiation.
Examine each option: Refrigeration slows microbial growth by reducing the temperature, air filtration removes microorganisms from the air, and steam (moist heat) kills microorganisms through high temperature and pressure.
Recognize the exception: Liquid chemical disinfectants are not a physical method; they involve chemical agents to kill or inhibit microorganisms.
Conclude the analysis: The correct answer is the option that does not fit the category of physical methods, which is liquid chemical disinfectants.
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