Week 4 Concepts: Controlling Microbial Growth
Controlling Microbial Growth
Prepare: Controlling Microbial Growth
The sterilizing gas used in
... [Show More] chemiclaves is ______.
ethylene oxide
iodophor
formaldehyde
chlorine dioxide
Glutaraldehyde
HEPA filters are used to remove microbes from
air.
liquids.
human tissues.
medical instruments.
All of the choices are correct.
Which of the following microbial forms has the highest resistance to physical and chemical controls?
Bacterial endospores
Fungal spores
Protozoan cysts
Naked viruses
Yeast
Sterilization is achieved by
flash pasteurization.
hot water.
boiling water.
steam autoclave.
All of the choices are correct.
The method of removing vegetative microbial life forms and debris to reduce contamination to safe levels is termed
______.
antisepsis
pasteurization
sanitization
disinfection
_____ is a halogen used in gaseous and liquid form for large scale disinfection of drinking water and sewage.
Bromine
Betadine
Fluorine
Neon
Chlorine
The alcohol wipe used on a patient's skin before an injection is an example of ______.
antisepsis
disinfection
sterilization
decontamination
sanitization
Self-Check: Disinfection Techniques
Drag the following terms to their corresponding description.
destruction of most microbial life, but often does not kill
spore-forming bacteria
Disinfection
mechanical removal of most microbes from an animate or
inanimate surface and can be accomplished with hot water,
steam, or chemicals.
Decontamination
prevents bacteria from reproducing and does not kill bacteria Bacteriostatic
destruction of all microbial life including endospores Sterilization
disinfection on a living surface, such as patient’s arm Antisepsis
kills bacteria Bacteriocide/Bacteriocidal
the heating of food (ice-cream) and beverages (milk, juices)
to remove harmful microbes.
Pasteurization
Self-Check: Disinfection Techniques II
_____________is disinfection on a living surface.
antisepsis
sanitization
degermation
disinfection
Sterilization
The most resistant infectious particles are ___________.
fungi
endospores
viruses
prions
Helminths
________are the sturdiest and most encountered infectious agents. For this reason, these are used to test the
efficacy of autoclaves.
viruses
helminths
fungi
prions
Endospores [Show Less]