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Physical and Chemical Agents

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

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

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Physical and Chemical Agents
Which disinfectant was the most effective against Salmonella"?

Merthiolate
Phenol
Cetylpyridinium chloride
Hexachlorophene

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

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Physical and Chemical Agents
For sterilization of which material gamma rays can be used?

Canulas
None of these
Catheters
Plastic syringes

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Physical and Chemical Agents
If a 1:600 dilution of a test compound kills a standard population of Staphylococcus aureus in 10 minutes but not 5 minutes while a 1:60 dilution of phenol kills the population in the same time, what is the phenol coefficient of the test compound?

10
5
50
1

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Physical and Chemical Agents
Which of the following material is sterilized by heating at 160°C in a hot air oven for one hour?

All-glass syringes
Swab sticks
Oils and jellies
All of these

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