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Health, Medicine, Nursing
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English (U.S.)
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Topic:
Mechanisms of Disinfectants and How Kirby-Bauer Method Determine Antibiotic Susceptibility
Essay Instructions:
Disinfectants and the Kirby-Bauer Method
Based on your research, respond to the following:
What are the three mechanisms by which disinfectants work? Describe.
Which microbes are most susceptible versus most resistant to disinfectants? Why?
What are the factors that influence the size of the zone of inhibition of an antibiotic when employing the Kirby-Bauer method? How can this method determine if an antimicrobial agent is bactericidal or bacteriostatic?
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Disinfectants and the Kirby-Bauer Method
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Disinfectants and the Kirby-Bauer Method
What are the three mechanisms by which disinfectants work? Describe.
Disinfectants have three essential action mechanisms that help in killing germs. One of the mechanisms is Cross-linking, coagulating, and clumping, where one uses alcohol which causes cell proteins to lose their abilities through clumping. The next mechanism is oxidizing, and one may use chlorine or peroxygen compounds. The third mechanism is structure and function disruption through the use of quaternary ammonium compounds. These are the most commonly used disinfectants (Meade & Garvey, 2018).
Which microbes are most susceptible versus most resistant to disinfectants? Why?
Bacterial spores are the ones that give disinfectants a hard time due to their resistance power. The next most resistant bacteria are mycobacteria. The resistance occurs when the bacteria acquire exogenous mobile genetic elem...
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