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Physical and Chemical Agents

Physical and Chemical Agents
All of the following are sporicidal except

ethylene oxide
formaldehyde
alcohol
glutaraldehyde

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Physical and Chemical Agents
Which of the following process can be efficiently carried out by incineration?

Sterilization of scalpel blades and needles
Sterilization of points of forceps
Destruction of contaminated materials
Sterilization of all glass syringes

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Physical and Chemical Agents
Which of the following substances can sterilize?

Ethylene oxide
Cetylpyridinium chloride
Chlorine
Alcohol

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Physical and Chemical Agents
Which of the following is a limitation of the autoclave?

It lacks the ability to kill endospores
It lacks the ability to inactivate viruses
It will destroy heat labile materials
It takes too long to sterilize

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Physical and Chemical Agents
One drawback to the use of ultraviolet light as a sterilizing agent is its

failure to bacterial spores
failure to kill microbes in a closed environment
failure to kill bacteria
failure to kill microbes located in the center of an object

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Physical and Chemical Agents
Sweet and salty foods frequently don't require refrigeration to prevent spoilage because they have

low pH
insufficient nutrients
high concentration of solutes
toxic alkaline chemicals

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