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29 Cards in this Set

  • Front
  • Back
major ingredient of detergents and soaps
quaternary ammonium compounds (QAC)
QAC's act as a ____ that alter membrane ____ of some ____ & ____
surfactant - protein - bacteria - fungi
QAC's (is/isn't) ____ sporicidal
isn't
soaps mechanically remove ____, ____ & ____ containing microbes
dirt - soil - grease
germicidal soap kills millions more ____ than non-germicidal
bacteria
4 examples of heavy metals in solutions
silver - mercury - nitrate - thimerosal
silver & mercury kill ____ cells in low concentrations by inactivating ____
vegetative - protein
heavy metal solutions have an ____ action
oligodynamic
oligodynamic is active in ____ quantity
small
heavy metals (is/isn't) ____ sporicidal
isn't
the flu shot contains ____ ____
heavy metals
2 examples of aldehydes
glutaraldehyde - formaldehyde
glutaraldehyde & formaldehyde kill by ____/____ proteins & ____
cross-linking - alkylating - DNA
glutaraldehyde are in 2% solution (cidex) used as a sterilant for ____ sensitive ____
heat - instruments
formaldehyde is used as a ____ & ____
disinfectant - preservative
the ____ of formaldehyde limits its use
toxicity
aldehydes (is/isn't) ____ sporicidal
is
____ are involved with cross-linking of proteins & DNA
glutaraldehyde
formaldehyde is common in ____ products
household
4 examples of gases & aerosols
ethylene oxide - propylene oxide - betapropiolactone - chlorine dioxide
gases & aerosols have strong ____ agents & ____-____ proteins
alkalating - cross-link
gases & aerosols (is/isn't) ____ sporicidal
is
4 applications of gases & aerosols
equipment - bedding - disposables - sterilization
gases & aerosols are very ____ & can effect the ____, ____ & ____ ____
toxic - eyes - skin - mucus membranes
are gases & aerosols carcinogenic
yes
ethylene oxide is involved with a ____ chamber
gas
organic acids & chemical food preservatives are used in food to ____ microbial growth
inhibit
5 examples of organic acids & chemical food preservatives
sulfur dioxide (E220-228) - sodium benzoate/benzoic acid (E210-223) - sorbic acid (E200-203) - propionic acid (Ca propionate (e280-283) - nitrates + nitrites (E249-250)
sulfur dioxide is commonly used to ____ ____
preserve food