Bacterial Growth & Control of Bacterial and Fungal Growth Flashcards Preview

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Flashcards in Bacterial Growth & Control of Bacterial and Fungal Growth Deck (13)
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1

describe how temperature can influence bacterial growth

2

describe how the amount of water can restrict microbial growth

3

describe the presence of superoxide dismutase and catalase in certain groups of microbes

4

give examples for oxygen requirements (obligate aerobe, facultative aerobe, microaerophilic, obligate anaerobe)

5

describe the growth requirements for bordetella pertussis, haemophilus sp., and legionella sp.

6

describe what macronutrients are used for in bacteria (C, O, N, H, P, S)

7

describe most resistance vs most susceptible microorganisms

8

describe antisepsis, disinfection and sterilization

  • antisepsis: destruction or inhibition of microorganisms in or on living tissue 
    • e.g. skin or mucous membranes
  • disinfection: reduction of the number of viable microorganisms on or in a product or surface to a level previously specified as appropriate
  • sterilization: a process that ensures a surface or product is free from viable microorganisms 

9

describe common physical methods, gas vapor methods and liquid chemical methods used in healthcare settings for sterilization/disinfectants

10

describe sterilization techniques and their mechanism of action

11

when would sterilization be used in a healthcare setting?

  • eliminate microorganisms from solutions
  • eliminate microorganisms from surgical instruments prior to invasive procedures
  • treat body fluids, used surgical instruments, etc.

12

when would disinfectant be used in a healthcare setting?

  • control health-care associated infxns
  • limit patient exposure to contaminated surfaces
  • reduce microbial load on contaminated equipment (body fluids, secretions, blood, etc.)

13

when woudl an antiseptic be used in a healthcare setting?

  • reduce microbial load on healthcare worker:
    • surgical handscrubs/soaps/lotions
  • reduce microbial load on patient skin or mucous membranes prior to invasive procedures
  • clean minor wounds or skin abrasions