Chemical agent in sterilization
a) ethylene oxide
b) Formaldehyde
c) alcohol
d) a+b
e) all
Definition for sanitisation: ❌ ❌ (ex. water conditioning).
Explain the all or nothing principle of sterilisation: ❌ including the ❌. ❌
What is used in biological sterilization control?
Bacillus stearothermophilus spores for steam or chemical vapor sterilization. - survive 121 degrees for 5 min but die after 13 min
Bacillus subtilis spores for ethylene oxide or dry heat sterilization.
Choose correct about UV light
a) non ionizing
b) poor penetrability
c) the use is limited
Main difference between antiseptics and disinfecting agents Where the substance is used. ❌ are used on living tissues and most ❌ are used on objects.
Sterilization of disposable supplies and heat-sensitive pharmaceuticals:
a) UV
b) ionizing radiation
c) gamma rays
e) a+b+c
b) aldehydes
Sterilization for heat-stable substances that are not penetrated by moist heat such as oils and powder:
a) autoclaving
b) moist heat
c) dry heat
e) none
Filters are used for
a) vaccines
b) parental solutions
c) vitamins
Which of the following is used to treat/disinfect/sterilize lipid viruses
a) Ethylene oxide
b) Iodophores
c) Moist heat
Abbrevation of LTH ❌
Biofilm - how does it effect decontamination procedure
- ❌ - ❌ - Which makes the decontamination more difficult bc to decontaminate properly the concentration of the disinfectant, sterilant and the contact time should be increased.
b) non-ionizing radiation
Chemical agent in sterilization:
b) iodine
Sterilization of oils and powders
❌ Removal of microorganisms contaminating an object
LTH , HTST, UHT
a) pasteruization
b) autocalving
❌ spores for steam or chemical vapor sterilization. - survive 121 degrees for 5 min but die after 13 min
❌ spores for ethylene oxide or dry heat sterilization.
