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Physical and Chemical Agents

Physical and Chemical Agents
Which of the following disinfectants act by disrupting microbial membranes?

Halogens
Cationic detergents
Aldehydes
Heavy metals

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Physical and Chemical Agents
A(n)____is used to prevent infection by killing or inhibiting pathogen growth on animal tissues.

disinfectant
antiseptic
sanitizer
bacteriostatic agent

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Physical and Chemical Agents
Complete destruction of the microorganisms is commonly known as

disinfection
antisepsis
sterilization
none of these

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Physical and Chemical Agents
Which of the following has most heat resistant spores?

Bacillus stearothermophilus
Clostridium histolyticum
Bacillus cereus
Clostridium perfringens

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Physical and Chemical Agents
Which of the following tests is designed to simulate the natural conditions under which the disinfectants are used in hospitals?

None of these
Phenol coefficient test
Capacity test
Minimum inhibitory concentration test

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

None of these
Catheters
Plastic syringes
Canulas

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