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10 Cards in this Set
- Front
- Back
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"Sterile" refers to the complete absence of what?
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Sterile refers to the complete absence of all life.
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Name the most common gaseous sterilizing agent.
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The most common gaseous sterilizing agent is ethylene oxide.
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How dry heat and moist heat differ in their ability to kill microbes?
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Dry heat is less efficient than moist heat, so dry heat must reach higher temperatures to sterilize objects.
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Name a machine in the hospital and one in many homes that can produce enough steam pressure to sterilize items in less than an hour.
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Hospitals use an autoclave, essentially the same process as a home based pressure cooker.
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What are the standard pressure, temperature, and time normally used to achieve sterilization with steam?
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The standard pressure, temperature, and time normally used to achieve sterilization with steam are 121 degrees Celsius at 15 lbs of pressure for 15 mins.
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What are the advantages of sterilization by gamma radiation?
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does not involve heat, great penetration for sterilizing items in sealed packaging
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What are the advantages of sterilization by ultrafiltration?
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Sterilization by ultrafiltration involves no heat or chemical reaction, so it is good for soluble materials (such as enzymes and antibiotics) and it is a good way to sterilize gases.
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What are the basic usages of disinfectants and antiseptics?
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Disinfectant refers to chemicals used to kill bacteria on inanimate objects. Antiseptics are usually milder versions of disinfectants that can be used on human flesh.
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Differentiate among bactericide, fungicide. virucide, sporicide, and biocide.
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Bactericides kill bacteria; fungicides kill fungi; virucides kill viruses; sporicides kills spores; and biocides are nonspecific agents
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What different effects do bacteriostatic and bactericidal agents have on bacteria?
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Bacteriostatic agents do not kill bacteria, but they do inhibit their growth; bactericidal agents kill the bacteria.
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