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Batce lab > CHEMICAL METHODS > Flashcards

CHEMICAL METHODS Flashcards

(51 cards)

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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

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A

Cetylperidium Chloride

22
Q

example of QUATS:

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A
  • Benzalkondium (Zephiran)
  • Cetylperidium Chloride
23
Q

bacillus pumilus

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A

ionizing radiation

24
Q

heavy metals mode of action

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A

protein and enzyme inactivation

25
mechanical action by rubbing and scrubbing
soap and detergents
26
halogens mode of action
oxidation of cellular components and protein denaturation
27
QUATS resistant to M. tuberculosis
Cetylperidium Chloride
28
alcohol and iodine solutions for antiseptics
tincture
29
QUATS meaning
Quaternary Ammonium Compounds
30
form of mercury for disinfection
Merthiolate
31
cold sterilization
ethylene oxide
32
oxidizinf agents mode of action
oxidation of cellular components
33
example of iodophors
povidone-iodine (betadine)
34
clorhexidine mode of action
cytoplasmic membrane destruction
35
anti algae
copper sulfate
36
ethylene oxide principle
alkylation of nucleic acids
37
forms of iodine:
tincture or iodophores
38
chlorine dilution
1:10 dilution of 5.25%
39
comonly used sntiseptic in surgery
chlorhexidine
40
Gaseous chemicals:
- ethylene oxide - hydrogen peroxide - periacetic acid
41
type of alcohol used
70% ethano;
42
ethylene oxide mg/L and temp in gas chamber
470-700 mg/L 55-60 C
43
chloroxylenol mode of action
cell wall disruption and enzyme inactivation
44
effective against Gr +
- hexachlorophene - chloroxynelol
45
aldehyde used for disinfecting
- 2% glutaraldehyde - 40% formalin
46
alcohol mode of action
protein denaturation and lipid dissolution
47
has a residual effect and toxic
hexachlorophene
48
bacillus subtilis var. globigii
ethylene gas
49
# effectiveness of physical method bacillus subtilis var.niger
hot air oven
50
not affected by organic compounds
chloroyxylenol
51
gaseous chemical with shorter contact time of killing
hydroge peroxide and periacetic

Batce lab (5 decks)

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