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Batce lab > CHEMICAL METHODS > Flashcards

CHEMICAL METHODS Flashcards

1
Q

soap and detergents posses antibacterial ingredients such as:

A
  • triclocarbon
  • triclosan
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2
Q

example of chemically substituted phenol compounds

A
  • orhto-phenylohenol
  • ortho-benyl-para-chlorophenol
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3
Q

form of chlorine that is not used as sterilants

A

hypochlorite

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4
Q

hexachlorophene mode of action

A

interruption of electron transport, enzyme inhibition and membrane destruction

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5
Q

rarely used, bacteriostatic

A

heavy metals

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6
Q

for crede’s prophylaxis

A

1% silver nitrate

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7
Q

phenolic compounds mode of action

A
  • protein denaturation
  • cell membrane and enzyme inactivation
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8
Q

ethylene oxide minimum time

A

2 hours

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9
Q

used to measure the dissinfecting power of a substance

A

phenol coefficient

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10
Q

aldehyde mode of action:

A

Alykylation of nucleic acids and protein denaturation

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11
Q

QUATS mode of action

A

protein denaturation and cell mebrane destruction

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12
Q

inactivated by irganic compounds and hard water

A

QUATS

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13
Q

oxidizing agents:

A
  • hydrogen peroxide
  • ozone
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14
Q

surface active agents

A

QUATS

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15
Q

for hospital and institutional disinfection

A

phenolic compounds

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16
Q

one of the oldest and common disenfectants

A

chlorine

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17
Q

methods for water sterilation:

A
  • 2-3 drops of bleach in 1L of water (30 mins)
  • Chlorine in pools
  • use of copper sulfate pentahydrate
  • Sodium thiosulfate for water testing
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18
Q

Geobacillus stearothermophilus/Bacillus stearothermophilus

A

autoclave

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19
Q

reeduce surface tesion

A

QUATS

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20
Q

iodine plus a neutral polyner carrier that ust be diluted and more preferrable

A

iodophors

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21
Q

sputum decontamination

A

Cetylperidium Chloride

22
Q

example of QUATS:

A
  • Benzalkondium (Zephiran)
  • Cetylperidium Chloride
23
Q

bacillus pumilus

A

ionizing radiation

24
Q

heavy metals mode of action

A

protein and enzyme inactivation

25
Q

mechanical action by rubbing and scrubbing

A

soap and detergents

26
Q

halogens mode of action

A

oxidation of cellular components and protein denaturation

27
Q

QUATS resistant to M. tuberculosis

A

Cetylperidium Chloride

28
Q

alcohol and iodine solutions for antiseptics

A

tincture

29
Q

QUATS meaning

A

Quaternary Ammonium Compounds

30
Q

form of mercury for disinfection

A

Merthiolate

31
Q

cold sterilization

A

ethylene oxide

32
Q

oxidizinf agents mode of action

A

oxidation of cellular components

33
Q

example of iodophors

A

povidone-iodine (betadine)

34
Q

clorhexidine mode of action

A

cytoplasmic membrane destruction

35
Q

anti algae

A

copper sulfate

36
Q

ethylene oxide principle

A

alkylation of nucleic acids

37
Q

forms of iodine:

A

tincture or iodophores

38
Q

chlorine dilution

A

1:10 dilution of 5.25%

39
Q

comonly used sntiseptic in surgery

A

chlorhexidine

40
Q

Gaseous chemicals:

A
  • ethylene oxide
  • hydrogen peroxide
  • periacetic acid
41
Q

type of alcohol used

A

70% ethano;

42
Q

ethylene oxide mg/L and temp in gas chamber

A

470-700 mg/L 55-60 C

43
Q

chloroxylenol mode of action

A

cell wall disruption and enzyme inactivation

44
Q

effective against Gr +

A
  • hexachlorophene
  • chloroxynelol
45
Q

aldehyde used for disinfecting

A
  • 2% glutaraldehyde
  • 40% formalin
46
Q

alcohol mode of action

A

protein denaturation and lipid dissolution

47
Q

has a residual effect and toxic

A

hexachlorophene

48
Q

bacillus subtilis var. globigii

A

ethylene gas

49
Q

effectiveness of physical method

bacillus subtilis var.niger

A

hot air oven

50
Q

not affected by organic compounds

A

chloroyxylenol

51
Q

gaseous chemical with shorter contact time of killing

A

hydroge peroxide and periacetic

Batce lab (5 decks)

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