SNursingI- Microbes (Chemical Sterilization).txt

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SNursingI- Microbes (Chemical Sterilization).txt
2013-07-01 16:15:13

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  1. what are the 2 classes of chemical sterilization?
    • liquid
    • gas
  2. liquid sterilization is used mostly for ____ and is more common than gas.
  3. what are the 2 liquids used in cold trays?
    • chlorhexidine
    • gluteraldehyde
  4. gluteraldehyde is only used on _____ and _____
    • surfaces
    • instruments
  5. things placed in a cold tray are only considered ____ not sterilized
  6. why is gluteraldehyde not used on living tissues?
  7. what liquid is used on living tissues?
    what is this used as @ school?
    • chlorhexidine
    • scrub solution
  8. gases are used for things that cannot tolerate a high temp like an _____
  9. what are the 2 gases used?
    • ethylene oxide
    • hydrogen peroxide gas plasma HPGP
  10. what are the uses for ethylene oxide?
    • industry
    • institutions
    • military
  11. how does EO gas work?
    deactivates DNA (no repro of MOs)
  12. what are the adv. of EO gas?
    • low temps
    • penetration!
    • microbicide
  13. what are the dis adv of EO gas?
    (takes how many hours + air out time)
    • slow!! takes 12-24 hours, then 7 days of ventilation
    • explosive
    • flammable
    • carcinogenic
    • mutigenic
  14. which gas is more common, EO or HPGP?
  15. why is HPGP used?
    to replace EO, only lol
  16. what is the adv of HPGP?
    safe for personnel and environment
  17. what is the disadv of HPGP?
    cannot penetrate walls of instrument (lumen)
  18. what is required with every sx pack?
    sterile indicator
  19. this indicator changes color when exposed to heat and doesnt indicate sterility
    autoclave tape
  20. indicator that uses vials or paper strips impregnated with bacillus stearothermophilusthen cultured (takes 2 days)
    biological indicators
  21. envelopes and bags use a ____ change to indicate sterility
  22. the practice of soaking objects in disinfectant solutions (dull sharp edges)
    sterility is not garunteed
    used for dirty or minor procedures (fe. neuter)
    also used for inst. that shouldnt be autoclaved
    cold sterilization using a cold tray
  23. procedure for ____ sterilization:
    clean instruments
    soak for 15mins in solution
    to be considered sterile they must soak for 3 hours
    solution should be changed every 2 w. (14d)
  24. cold trays should be labeled with ___ and ___
    • date changed
    • initials
  25. what are some examples of chemical disinfectants?
    • Phenols
    • quaternary ammonium compounds
    • aldehydes
    • alcohols
  26. what are some examples of antiseptics?
    • Halogens
    • biguanides
    • others
  27. what are the ex of phenols?
    • phisohex hand scrub
    • lysol
  28. when are phenols commonly used?
    allergy to chorhexidine
  29. what is important to remember about using lysol to clean?
    allow to dry first! allergies may occur
  30. what should never be mixed with bleach?
    quaternary ammonium
  31. what are the 2 examples of quaternary ammonium?
    • roccal
    • benzalkonium chloride
  32. quaternary ammonium is not effective against ___ & ____
    • spores
    • viruses
  33. what are the 2 examples of aldehydes?
    • formaldehyde
    • gluteraldehyde
  34. what are the 2 types of alcohol?
    • ethyl
    • isopropyl
  35. why should alcohol never be used on open wounds?
    • cytotoxic
    • painful
  36. alcohol is ineffective against ____ & ____, making this a _____
    • spores and viruses
    • disinfectant
  37. what is the final paint?
    50-70% ethyl or isopropyl alcohol on the pt.
  38. what conc. of alcohol should not be used on pts.?
    *what is it used for?
    • 99%
    • disinf. suture materials
  39. one of the first disinfectants used
    can be cytotoxic if not diluted (1:30)
    kills viruses
    list an example
    • halogens
    • chloride comounds
  40. what is an example of a chloride compound?
    • sodium hypochlorite
    • aka bleach
  41. not common in veterinary med.
    only on intact skin
    must be greatly diluted to use on skin
    (tincture: 2% ___ & 50% ethyl)
  42. iodine combined ith a carrier molecule
    this is more commonly used in vet med
    used as scrub
  43. what is an ex. of idophors?
    providine-iodine scrub (detergent) solution (no detergent)
  44. what are the different effects of idophors compared to iodine?
    • slowly releases free iodines
    • reduces irritation/staining
  45. what are the 2 biguanides?
    what is the difference btw the 2?
    • chlorhexidine (nolvasan)
    • nolvasan S-used only on inanimate objects!
  46. nolvasan solution is used as a ____ ____ if diluted
    wound lavage
  47. is there an ideal chemical disinfectant?