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Physical and Chemical Agents

Physical and Chemical Agents
Which of the following is not a disinfectant containing a heavy metal?

Mercurochrome
Chlorine
Silver nitrate
Copper sulfate

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Physical and Chemical Agents
Which of the following material is sterilized by use of red heat?

Soiled dressings
Inoculating wires and loops
Glass slides
All-glass syringes

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Physical and Chemical Agents
Microbes can be removed from a liquid solution by the process of

osmosis
filtration
desiccation
freeze-drying

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Physical and Chemical Agents
The lowest temperature that kills all microorganisms in a liquid suspension in 10 minutes is known as the

thermal death temperature
decimal reduction time
thermal death point
thermal death time

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Physical and Chemical Agents
Which of the following compounds are commonly used as general antiseptics to treat cuts and scratches?

Aldehydes
None of these
Ethylene oxide
Halogens

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Physical and Chemical Agents
Which of the following methods will not sterilize?

121°C at 15 lb/in pressure for 15 to 20 minutes
100°C boiling water for 30 minutes
Dry heat at 171°C for 1 to 2 hours
Aqueous glutaraldehyde for 10 hours

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