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squeak1971
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Can you name some examples of disinfectants which are part of the Aldehyde category?
What are the properties of Aldehydes?
- Parvocide, Gigasept, Veticide, Cidex
- Highly toxic
- Not inactivated by organic matter
- Slow acting
- Activity related to temperature
- Not recommended for every day use
- Evaporates if left uncovered
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Can you name some examples of Peroxide disinfectants?
What are the properties of Peroxides?
- Virkon, Hydrogen Peroxide, Oxykill
- Paracetic acid
- Available as powder or sachet
- Corrosive
- Fast acting but short acting
- Good action against bacteria, viruses and fungi but variable against spores
- Highly irritant
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Which of the following is an example of a Halogen disinfectant?
Virkon, Trigene or Bleach?
Bleach
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What is the other name given to bleach?
Hypochlorite or in-organic chlorines
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Names some characteristics of Halogen disinfectants
- Readily available
- Irritant to skin
- Strong smelling
- Can react with acids (e.g. Urine ) to create noxious chlorine gas
- Corrosive
- May need higher concentrations if organic matter present as could be deactivated
- Bactericidal, fungicidal, virucidal, sporicidal
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Hibiscrub is commonly used in veterinary practice for hand and patient hygiene. Which group of disinfectants is Hibiscrub part of?
Biguanides
Big Iguanas!!
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Can you name some properties of Hibiscrub?
- Chlorhexidine
- Not as effective at killing fungi as Povidone
- Active against many bacteria and some activity against viruses
- Chemically active for approximately 6 hours
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What disinfectant would you associate with the following phrase?
Toxic to cats!
Phenols
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Name some examples of common phenols
- Jeyes fluid
- Dettol
- Strepsils
- Most mouth washes and deodorants
- Thyme
- Creosote
- Coal tar soap
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Some additional facts about Phenols ....
- Strong smelling
- Poor viral activity
- Cheap and readily available
- Absorbed by rubber and plastic
- Enhanced activity with warm temperatures
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Surgical spirit is part of which disinfectant category?
Alcohols
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Another commonly used alcohol disinfectant in practice are hand gels. By what process do alcohol hand gels achieve disinfection?
Denaturation of proteins
Remember my fried egg!
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What is the term for a disinfectant solution which is an Iodine carrier?
Iodophor
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Povidone / Pevidine/ Iodine - can you name some characteristics of the disinfectant?
- Can stain!
- Fast acting / slow release
- Not inactivated by organic matter
- Action against bacteria, viruses and fungi
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Ehthylene Oxide is classified as what type of disinfectant?
Vapour phase disinfectant
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One of the most commonly used general disinfectants in practice is Trigene. To which category of disinfectants does Trigene belong?
Halogenated tertiary amines which contain quartenary ammonium compounds
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Name three words associated with surfactants
- Soap
- Emulsification of lipids
- Anionic
- Cationic
- Disruption of surface tension of water
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Which virus would Trigene not have an action against?
Norovirus
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