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32 Cards in this Set
- Front
- Back
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Which of the following processes destroys all microorganisms on inanimate objects including spore-bearing ones?
a. antisepsis b. sanitation c. sterilization d. disinfection |
c. sterilization
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70-90% ethyl or isopropyl alcohol, phenolic germicidal solution such as hexachlorophene and carbolic acid, iodophor solution, and sodium hypochlorite (household bleach) are examples of which type of disinfectant?
a. high level b. intermediate level c. low level d. central level |
b. intermediate level
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The _ sterilizer pulls air out of the chamber by a vacuum from the sterilizing chamber and replaces it with steam that immediately penetrates the wrapped items.
a. gravity displacement b. Sterrad c. ethylene oxide d. pre-vacuum |
a. gravity displacement
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Which type of disinfectant agent destroys microbes by affecting proteins?
a. 2% glutaraldehyde b. iodine c. chlorine compounds d. alcohol |
a. 2% glutaraldehyde
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The ___ sterilizer is commonly referred to as a "flash" autoclave.
a. gravity displacement b. high-speed steam c. Sterrad d. Steris |
b. high-speed steam
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Which type of disinfectant is used on non-critical items such as floors, walls, stainless steel furniture, electrosurgical units, anesthesia equipment?
a. high level b. intermediate level c. low level d. central level |
c. low level
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The efficiency of steam sterilization depends on lowering and limiting the _____ on the items to be sterilized.
a. bioburden b. heat c. penetration of the sterilant d. moisture |
a. bioburden
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Which type of disinfectant agent destroys microbes by coagulating the cellular proteins?
a. 2% glutaraldhyde b. phenolic compounds c. chlorine compounds d. alcohol |
d. alcohol
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he peracetic acid sterilization system is a self-contained unit most commonly used to sterilize ____.
a. stainless steel instruments b. endoscopes c. wrapped items d. liquid medications |
b. endoscopes
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The advantages of steam sterilization include being preferred to other methods because it is the least ____________, most efficient, and the safest method of processing heat and moisture stable items.
a. toxic b. destructive c. harmful d. expensive |
d. expensive
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Which of the following is NOT a true statement concerning the principles of gas plasma (Sterrad system) sterilization?
a. The hydrogen peroxide gas plasma destroys a broad spectrum of microorganisms, including gram-negative and gram-positive bacteria, mycobacterium, yeasts, and fungi as well as highly resistant aerobic and anaerobic bacterial spores. b. The plasma destroys microbes by interfering with the cell membrane, nucleic acids, and enzymes. c. Hydrogen peroxide plasma is used primarily for heat and moisture sensitive items such as endoscopes and fiber optic cameras. d. Gas plasma sterilization systems have a relatively slow cycle time of approximately 3 hours and aeration is necessary. |
d. Gas plasma sterilization systems have a relatively slow cycle time of approximately 3 hours and aeration is necessary.
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To eliminate contamination of the wall or portable suction outlet, suction tubing should be disconnected by the ___.
a. surgical technologist b. surgeon's assistant c. circulator d. surgeon |
c. circulator
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Which of the following statements is a FALSE statement concerning the principals of ethylene oxide sterilization?
a. Ethylene oxide is a method of sterilization used for equipment which can withstand the extreme pressure and temperature. b. Ethylene oxide kills microorganisms by interfering with the metabolism of proteins and by inactivating the cell's reproductive process. c. Highly dried bacterial spores are resistant to ethylene oxide gas, therefore must be hydrated for the gas to be effective. d. Biological indicators that contain bacillus subtilis var. niger must be used with every EO cycle to verify adequacy. |
a. Ethylene oxide is a method of sterilization used for equipment which can withstand the extreme pressure and temperature.
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Which of the following statements is FALSE concerning the advantages of gas/plasma sterilization systems?
a. no toxic residue is left on the sterilized items b. the by-products are water and carbon dioxide c. the system is enviromentally safe d. no aeration time is necessary |
b. the by-products are water and carbon dioxide
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The ____________ sterilizer uses agitated water with a neutral detergent cleaning agent to dissolve and loosen blood debris.
a. ethylene oxide b. washer c. high-speed d. pre-vacuum |
b. washer
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Activated gluaraldhyde is used for ___________ and heat sensitive items.
a. paper wrapped items b. items made with copper, brass, and zinc c. stainless steel instruments d. lensed instruments |
d. lensed instruments
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Steam sterilization utilizes _________ in the form of saturated steam under pressure within an enclosed enviroment.
a. chemicals b. dry heat c. moist heat d. none of the above |
c. moist heat
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As an alternative to wet vacuuming, the fl;oor can be "flooded" with _______ detergent-disinfectant solution.
a. high-level b. intermediate-level c. low-level d. central |
a. high-level
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Which of the following principals of sterilization by ionozing radiation is FALSE?
a. Sterilization by ionizing radiation is primarily used for commercially sterilized, prepackaged items for use in the operating room and hospital enviroment. b. X-Ray action causes ionization that increases thermal and chemical activity c. The primary variables with this system are temperature and length of exposure. d. Uranium 60, a radioactive isotope, is commonly used for irradiation sterilization. |
d. Uranium 60, a radioactive isotope, is commonly used for irradiation sterilization.
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The cycle time for the Steris sterilization system is ___.
a. 20-30 minutes b. 10-15 minutes c. 1-2 hours d. 5-6 hours |
a. 20-30 minutes
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Which of the following methods of monitoring the sterilization process has devices such as thermometers, timers, pressure guages, and recording devices?
a. mechanical monitors b. chemical monitors c. biological monitors d. Bowie-Dick monitors |
a. mechanical monitors
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Activated glutaraldehyde requires total immersion of instruments for _____ for sterilization.
a. 10 hours b. 1 hour c. 20 minutes d. 10 minutes |
a. 10 hours
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Which of the following statements is FALSE concerning ethylene oxide sterilization?
a. Ethylene oxide is flammable b. Ethylene oxide sterilization requires an aeration time after processing. c. Ethylene oxide is highly toxic to body tissues. d. Ethylene oxide cannot cause cancer. |
d. Ethylene oxide cannot cause cancer.
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The only method of monitoring that assures that items are sterile and the sterilization conditions have been met is ______.
a. mechanical monitors b. chemical monitors c. biological monitors d. Bowie-Dick tests |
c. biological monitors
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Which of the following is TRUE of dry heat sterilization?
a. Dry heat penetrates materials quickly and evenly, therefore shorter exposure times are required. b. Dry is the preferred method to sterilize rubber and fabric items. c. Dry heat should not be used to sterilize delicate, sharp, or cutting instruments because the process substantially dulls the item. d. Dry heat is primarily used to sterilize lubricating and mineral oils, petroleum products, and talcum powders. |
d. Dry heat is primarily used to sterilize lubricating and mineral oils, petroleum products, and talcum powders.
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________ uses high-intensity sound waves to assist in the cleaning of instruments through a process called cavitation.
a. Ultrasonic cleaner b. Washer-sterilizer c. Steris sterilizer d. Sterrad sterilizer |
a. Ultrasonic cleaner
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Before leaving the operating room, all ratcheted instruments are ________ and ___________, then placed in a basin of sterile water and enzymatic detergent.
a. closed; assembled b. opened; assembled c. opened; disassembled d. closed; disassembled |
c. opened; disassembled
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____________ has a broad anti-microbial range, effective against vegetative bacteria, mycobacterium tuberculosis, fungi, and viruses.
a. Peroxide b. Glutaraldehyde c. Carbolic acid d. Alcohol |
b. Glutaraldehyde
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Which of the following are recommended characteristics for packing materials?
a. adequate air removal and steam penetration for steam sterilization b. durable to prevent tearing, and puncture of normal handling and withstand the physical conditions c. flexible and memory-free to prevent folding back along the folding creases d. all of the above |
d. all of the above
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All items have come in contact with the patient and/or sterile field are considered _________.
a. sterile b. contaminated c. reusable d. clean |
b. contaminated
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Which method of packing items for sterilization is made of anodized aluminum, stainless steel, polymer, or polymer-metal combination that cannot be punctured?
a. rigid containers b. envelope-double wrapper c. paper-plastic peel packs d. dust covers |
a. rigid containers
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When preparing an item for sterilization, instruments should be checked for ________.
a. cleanliness b. defects c. loosing of screw and pins d. all of above |
d. all of above
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