Infections Chapter 13 & 14 Quiz
What equipment should not be used as an instrument sterilizer? a. A bead sterilizer b. An autoclave c. A dry heat sterilizer d. An unsaturated chemical vapor sterilizer
a. A bead sterilizer
Which of the following should never be used as a surface disinfectant? a. A high-level disinfectant. b. An intermediate-level disinfectant. c. A low-level disinfectant. d. A hospital disinfectant.
a. A high-level disinfectant.
Which of the following is the strongest (kills the most microbes)? a. A tuberculocidal disinfectant b. A hospital-level disinfectant c. A low-level disinfectant d. An antiseptic
a. A tuberculocidal disinfectant
How often should a surface cover on a dental light handle or light switch be replaced? a. After every patient b. After every three patients c. When the cover is visibly soiled d. Only after a high-speed handpiece is used on a patient
a. After every patient
Which of the following germicidal agents is least desirable as a surface disinfectant? a. Alcohols b. Chlorines c. Iodophors d. Phenolics
a. Alcohols
"Autoclave" tape is used for which type of sterilization monitoring? a. Chemical b. Biological c. Mechanical d. Mechanical and biological
a. Chemical
How would one manage a piece of equipment marketed for use in patients' mouths but is not disposable, and cannot be heat sterilized, covered with a protective barrier, or contact a liquid disinfectant? a. Don't use it. b. Use it on just one patient. c. Blow it off with compressed air between each use. d. Get permission from each patient for its use, then wipe if with a dry cloth before reuse.
a. Don't use it.
Bacillus atrophaeus spores are used to monitor which of the following sterilizers? a. Dry heat sterilizer b. Unsaturated chemical vapor sterilizer c. Steam sterilizer d. Dry heat sterilizer and steam sterilizer
a. Dry heat sterilizer
The labels of properly approved surface disinfectants contain a registration number from which Federal agency? a. EPA b. FDA c. CDC d. OSHA
a. EPA
Which bacterial spore is used to spore test a steam sterilizer and the unsaturated chemical vapor sterilizer? a. Geobacillus stearothermophilus b. Clostridium tetani c. Bacillis atrophaeus d. Bacillus cerus
a. Geobacillus stearothermophilus
Which of the following is a high-level disinfectant/sterilant? a. Glutaraldehyde b. Alcohol c. Bleach d. Iodophor
a. Glutaraldehyde
How should instrument packages/cassettes be placed into the sterilizer chamber? a. On their edges or in a single layer b. Layered flat and stacked upon one another c. Packed tight to reduce any air space between the packages or cassettes d. One cassette or package at a time regardless of its size
a. On their edges or in a single layer
What should be done before disinfecting a contaminated operatory surface? a. Preclean the surface. b. Cover the surface with a plastic surface cover for 10 minutes. c. Wipe the surface with a sterilant/high-level disinfectant. d. Make sure it has been uncovered and open to the air for at least 10 minutes.
a. Preclean the surface.
According to the CDC semicritical instruments are those that: a. penetrate soft tissue, contacts, bone, enters into or contacts the bloodstream or other normally sterile tissue. b. contact mucous membranes but will not penetrate soft tissue, contact bone, enter into or contact the bloodstream or other normally sterile tissue. c. contact the skin. d. are very expensive and in short supply.
b. contact mucous membranes but will not penetrate soft tissue, contact bone, enter into or contact the bloodstream or other normally sterile tissue.
The spray-wipe-spray procedure is a technique for: a. washing your hands. b. disinfecting surfaces or objects. c. adding a rust inhibitor to instruments prior to ultrasonic cleaning. d. flushing out your eye after a chemical exposure.
b. disinfecting surfaces or objects.
What is a Bowie-Dick test? a. A test for the efficiency of instrument cleaning equipment. b. A test using biological indicators for sterilization monitoring. c. A test for air removal in vacuum and prevacuum steam sterilizers. d. A test for the level of microbes in used ultrasonic cleaning solution.
c. A test for air removal in vacuum and prevacuum steam sterilizers.
Which of the following best describes an intermediate-level disinfectant? a. A virucidal agent b. A sporicidal agent c. A tuberculocidal agent d. A bactericidal agent
c. A tuberculocidal agent
Which of the following types of disinfectants can contain the same active ingredient as bleach? a. Iodophors b. Phenolics c. Chlorines d. Quaternary ammonium compounds
c. Chlorines
If surface covers are properly used during patient treatment, which of the following procedures is not needed? a. Wearing gloves for operatory clean-up. b. Performing hand hygiene before putting on gloves at the beginning of the appointment. c. Cleaning and disinfecting covered surfaces after the appointment. d. Changing masks between patients.
c. Cleaning and disinfecting covered surfaces after the appointment.
How would you sterilize burs made of carbon steel? a. In a steam autoclave at 121°C b. In a steam autoclave at 134°C c. In a dry heat sterilizer d. In a bead sterilizer
c. In a dry heat sterilizer
Gloves need not be worn during which of the following activities? a. Cleaning and disinfecting an operatory surface. b. Removing surface covers after the patients leaves. c. Placing new surface covers between patients. d. Assisting at chairside with a patient below the age of 6 years.
c. Placing new surface covers between patients.
According to the CDC how should noncritical instruments be prepared for use? a. Thoroughly cleaned. b. Processed with high-level disinfection. c. Processed with intermediate-level or low-level disinfection. d. Heat sterilized.
c. Processed with intermediate-level or low-level disinfection.
What is the main reason for packaging instruments before they are placed in a sterilizer? a. To prevent dirt/dust in the sterilizer from depositing on the instruments. b. To protect the instrument from recontamination after sterilization. c. To keep the killed microbes inside the packages so they won't contaminate the sterilizer chamber. d. To prevent rusting of the instruments.
b. To protect the instrument from recontamination after sterilization.
Which of the following surfaces is usually not involved in patient-to-patient spread of microbes? a. Air/water syringe handle b. Curing light handle c. Sink d. Handpiece control switch
c. Sink
Which of the following is a problem when using a liquid chemical sterilant on heat-sensitive instruments? a. These sterilants all require at least 24 of contact time. b. These sterilants destroy all plastic items. c. These sterilants cannot be spore-tested. d. These sterilants are all glutaraldehydes.
c. These sterilants cannot be spore-tested.
What's the rationale for the packaging step as part of instrument processing? a. To remove as much of the bioburden as possible to give the sterilization step the best chance to work. b. To help ensure the proper functioning of the instruments after instrument processing. c. To help maintain sterility of the instruments after instrument processing d. To facilitate the cleaning process by keeping the debris on the instruments from drying.
c. To help maintain sterility of the instruments after instrument processing
If you are using a disinfectant wipe (a paper towelette saturated with a disinfectant) rather than a spray disinfectant, how many wipes should be used to achieve proper cleaning and disinfection of a surface? a. One b. Two c. Three d. Four
b. Two
Which of the following is a housekeeping surface rather that a clinical contact surface and does not have to be covered or routinely cleaned and disinfected between each patient? a. Light handles on the dental unit b. Wall next to the dental chair c. Switch that controls the handpieces d. Radiographic equipment
b. Wall next to the dental chair
How should a cotton roll or other items be retrieved from a bulk container at chairside? a. With your fingers b. With sterile cotton pliers or forceps c. Dump the container contents out on a sterile towel and pick up one with your gloved fingers d. With gloved hands
b. With sterile cotton pliers or forceps
During instrument processing, what is the reason for sterilizing instruments? a. To remove all visible debris from the instruments. b. To protect the instruments after they are removed from the sterilizer. c. To kill all remaining microbes on the instruments after they have been cleaned. d. To make the instruments easier to clean.
c. To kill all remaining microbes on the instruments after they have been cleaned.
Why is it important to dry instruments before dry heat or unsaturated chemical vapor sterilization? a. To prevent the instruments from getting too hot. b. To keep the instruments from sticking to each other during the sterilization process. c. To maintain the antirusting nature of these two methods of sterilization. d. To make sure the chemical indicators do not get wet.
c. To maintain the antirusting nature of these two methods of sterilization.
Which of the following statements is true about ultrasonic cleaning of dental instruments? a. Never use a basket when cleaning loose instruments. b. Using dishwashing detergent is best for cleaning dental instruments. c. Used cleaning solution contains live microbes. d. Instrument cassettes cannot be cleaned in an ultrasonic cleaner.
c. Used cleaning solution contains live microbes.
Disinfection is best defined as: a. a process designed to kill microbes normally present in the mouth. b. a process intended to kill all microbes. c. a process designed to kill all diseases-producing microns but not necessarily high level of bacterial spores. d. a process designed to kill microbes normally present on the skin.
c. a process designed to kill all diseases-producing microns but not necessarily high level of bacterial spores.
Sterilization is best defined as: a. a process designed to kill microbes normally present in the mouth. b. a process intended to kill all microbes. c. a process designed to kill all diseases-producing microns but not necessarily high level of bacterial spores. d. a process designed to kill microbes normally present on the skin.
c. a process designed to kill all diseases-producing microns but not necessarily high level of bacterial spores.
Supplying sterile forceps or cotton pliers with each instrument set-up to reach into containers of bulk supplies (e.g., cotton rolls, or cotton pledgets) is best referred to as: a. antisepsis. b. unit dosing. c. aseptic retrieval. d. high-tech management.
c. aseptic retrieval.
A system of storage of sterilized instrument packages that recognizes a package's contents should remain sterile until some event causes items inside to become contaminated is correctly referred to as: a. event-horizon storage. b. event-occurrence storage. c. event-related storage. d. event-entitled storage.
c. event-related storage.
Spores of Geobacillus stearothermophilus are used in biological indicators to monitor: a. dry heat and steam sterilizers. b. dry heat and unsaturated chemical vapor sterilizers. c. steam and unsaturated chemical vapor sterilizers. d. dry heat, steam, and unsaturated chemical vapor sterilizers.
c. steam and unsaturated chemical vapor sterilizers.
What does the test solution contain that is used to evaluate the efficiency of medical/dental instrument cleaning equipment in the TOSI test? a. Motor oil and sand b. Human blood and pumice c. Mustard, ketchup, and salt d. Albumin, fibrin, and hemoglobin
d. Albumin, fibrin, and hemoglobin
What microbe is not killed by low-level disinfectants nor intermediate-level disinfectants? a. Mycobacterium tuberculosis b. Pseudomonas aeruginosa c. Staphylococcus aureus d. Bacterial spore
d. Bacterial spore
What is the best approach for decontaminating high-tech equipment such as computers, cameras, and digital radiography equipment? a. Sterilize in a dry heat sterilizer for the minimum amount of time to achieve sterilization. b. Sterilize in an autoclave for the minimum amount of time to achieve sterilization. c. Heavily spray the outer surfaces with a liquid sterilant/high-level disinfectant. d. Contact the manufacturer for instructions.
d. Contact the manufacturer for instructions.
What are the three main areas in a sterilizing facility? a. Holding, rust control, sterilization and storage b. Decontamination, monitoring, storage c. Waste disposal, sterilization and storage, monitoring d. Decontamination, packaging, sterilization and storage
d. Decontamination, packaging, sterilization and storage
According to CDC how often is one to perform mechanical monitoring of a sterilizer? a. Once a day b. Once a week c. Once a month d. Every load
d. Every load
When designing a sterilization facility and purchasing a new sterilizer, one should look for clearance of the desired sterilizer by what Federal agency? a. EPA b. OSHA c. CDC d. FDA
d. FDA
Why should ultrasonic cleaners or automatic instrument washers be used instead of routine hand-scrubbing to clean contaminated dental instruments? a. Ultrasonic cleaning and instrument washers sterilize the instruments. b. Ultrasonic cleaning and instrument washers are less expensive to perform. c. Hand-scrubbing does not get the instruments clean. d. Hand-scrubbing increases the chances of sharps injuries.
d. Hand-scrubbing increases the chances of sharps injuries.
According to the CDC how should critical instruments be prepared for use? a. Thoroughly wiped down with alcohol. b. Processed with high-level disinfection. c. Sterilized in an ultrasonic cleaner. d. Heat sterilized.
d. Heat sterilized.
According to the CDC how should non heat sensitive semicritical instruments be prepared for use? a. Thoroughly wiped down with alcohol. b. Processed with high-level disinfection. c. Sterilized in an ultrasonic cleaner. d. Heat sterilized.
d. Heat sterilized.
What is the most important property of a surface cover? a. It must be made of latex. b. It must be made of aluminum foil. c. It must be disinfected before being placed on a surface. d. It must be impervious to water.
d. It must be impervious to water.
Choose an advantage of using instrument cassettes? a. It permits the instruments inside to be just rinsed with hot water rather than being ultrasonically cleaned or processed through an instrument washer. b. It reduces the sterilization time in half. c. They do not have to be wrapped before sterilization. d. It reduces the risks of sharps injuries by reducing the direct handling of the instruments.
d. It reduces the risks of sharps injuries by reducing the direct handling of the instruments.
What is the main concern/precaution with using an unsaturated chemical vapor sterilizer? a. There is no biological indicator that can be used to monitor this sterilization process. b. It has a long sterilization time. c. It causes corrosion of carbon steel instruments. d. It requires the purchase and use of a special chemical sterilizing solution.
d. It requires the purchase and use of a special chemical sterilizing solution.
What should be done to the instruments at the end of a steam sterilization cycle? a. Immediately place the packages/cassettes on a countertop for cooling and drying in the room air. b. Unwrap the instruments and cool them down by dipping in cold sterile water. c. Remove the instruments from the packaging material and ultrasonically clean them. d. Let the instrument packages dry inside the sterilizer before handling them.
d. Let the instrument packages dry inside the sterilizer before handling them.
Which of the following is used to kill microbes on the skin just before an injection? a. Sterilant b. Antiseptic c. Antibiotic d. Disinfectant
b. Antiseptic
Why did the CDC and the FDA issue a Health Advisory in 2015 urging all healthcare facilities to immediately review current reprocessing practices at their facility to ensure they (1) are complying with all steps as directed by the device manufacturers, and (2) have in place appropriate policies and procedures that are consistent with current standards and guidelines? a. Recent infection control lapses due to noncompliance with recommended medical device reprocessing procedures highlighted a critical gap in patient safety. b. It was part of a 10-year plan to boost patient safety practices. c. Both agencies just developed new guidelines or regulations on instrument processing in healthcare facilities. d. A new director of the CDC and a new Commissioner of the FDA were just appointed.
a. Recent infection control lapses due to noncompliance with recommended medical device reprocessing procedures highlighted a critical gap in patient safety.
According to the CDC low-level disinfectants can be use on clinical contact surfaces if they are EPA-registered as a hospital disinfectant and have been shown to kill: a. Staphylococcus aureus, Salmonella choleraesuis, and Pseudomonas aeruginosa. b. Mycobacterium tuberculosis var. bovis. c. human immunodeficiency virus. d. human immunodeficiency virus and hepatitis B virus
a. Staphylococcus aureus, Salmonella choleraesuis, and Pseudomonas aeruginosa.
Which of the following sterilization methods lead to corrosion (e.g., rusting) of carbon steel instruments? a. Steam b. Dry heat c. Unsaturated chemical vapor d. Dry heat and steam
a. Steam
What kinds of dental operatory surfaces best lend themselves to being covered with a surface barrier rather than being cleaned and disinfected between each patient? a. Those that are difficult to clean and disinfect b. Flat surfaces such as countertops c. Sink basins d. Walls
a. Those that are difficult to clean and disinfect
What's the rationale for the precleaning step as part of instrument processing? a. To remove as much of the bioburden as possible to give the sterilization step the best chance to work. b. To help ensure the proper functioning of the instruments after instrument processing. c. To help maintain sterility of the instruments after instrument processing. d. To facilitate the cleaning process by keeping the debris on the instruments from drying.
a. To remove as much of the bioburden as possible to give the sterilization step the best chance to work.
Storing supplies in drawers at chairside for retrieval during patient treatment can lend itself to cross-contamination of the drawer handle or of bulk items inside. a. True b. False
a. True
When using surface disinfectants in the office one cannot verify whether the microbes on the surface have been removed or killed. a. True b. False
a. True
Paper-plastic peel pouches cannot be used in a ________________ sterilizer. a. dry heat b. steam c. steam or unsaturated chemical vapor d. steam or unsaturated chemical vapor
a. dry heat
There are two reasons why packages of instruments should be allowed to dry inside the steam sterilizer before they are handled. One reason is because wet paper can easily tear when handled. The other is because: a. of wicking. b. the color of chemical indicators can only be seen on a dry package. c. wet instruments will have more water spots on them. d. the killing of the microbes is not yet complete until after the dry cycle.
a. of wicking
According to the CDC critical instruments are those that: a. penetrate soft tissue, contacts, bone, enters into or contacts the bloodstream or other normally sterile tissue. b. contact mucous membranes but will not penetrate soft tissue, contact bone, enter into or contact the bloodstream or other normally sterile tissue. c. contact the skin. d. are very expensive and in short supply.
a. penetrate soft tissue, contacts, bone, enters into or contacts the bloodstream or other normally sterile tissue.
The goal of instrument processing is to: a. provide sterile instruments at chairside for use on a subsequent patient. b. sterilize contaminated instruments. c. clean instruments free of visible debris. d. eliminate water spots.
a. provide sterile instruments at chairside for use on a subsequent patient.
What type of containers should be used to transport contaminated instruments from the operatory to the sterilizing room? a. An open metal pan so that everyone can see the contents. b. A covered, leak-proof, puncture-proof, container marked with a biohazard symbol. c. A closed glass containers marked with a biohazard symbol. d. An open, leak-proof, puncture-proof, plastic tub marked with a biohazard symbol.
b. A covered, leak-proof, puncture-proof, container marked with a biohazard symbol.
Which of the following terms indicate the strongest microbial killing power? a. A virucidal agent b. A sporicidal agent c. A tuberculocidal agent d. A bactericidal agent
b. A sporicidal agent
Why should handpieces be heat sterilized rather than wiped off with a disinfectant between patients? a. Because wiping off the outside will cause the handpiece to rust. b. Because wiping off the outside will not kill the microbes that were retracted up inside the handpiece. c. Because wiping off the outside could allow some of the damaging disinfectant to get inside the handpiece and destroy it. d. Because heat sterilization will help the internal lubricant spread to all surfaces in the turbine chamber.
b. Because wiping off the outside will not kill the microbes that were retracted up inside the handpiece.
If you properly use surface covers on clinical contact surfaces at chairside for each patient, which of the following is not necessary? a. Use gloves for patient care. b. Clean and disinfect those surfaces between patients. c. Package the instruments before sterilization. d. Wear protective clothing at chairside.
b. Clean and disinfect those surfaces between patients.
Proper steam sterilization involves placing the instruments in a completely closed container before processing them through the sterilizer. a. True b. False
b. False
What is the correct sequence of the instrument processing steps? a. Precleaning, holding, sterilization, corrosion control, packaging, monitoring, handling b. Holding, precleaning, corrosion control, packaging, sterilization, monitoring, handling c. Corrosion control, precleaning, packaging, holding, sterilization, monitoring, handling d. Precleaning, corrosion control, holding, sterilization, packaging, handling, monitoring
b. Holding, precleaning, corrosion control, packaging, sterilization, monitoring, handling
What is the main concern/precaution with using a dry heat oven-type sterilizer? a. There is no biological indicator that can be used to monitor the sterilization process. b. It has a long sterilization time. c. It causes corrosion of carbon steel instruments. d. It requires the purchase and use of a special chemical sterilizing solution.
b. It has a long sterilization time.
What is the main reason why cloth (e.g., terry cloth towels, denim) is not be used as a sterilization wrap? a. It is too expensive. b. It is not a good microbe barrier. c. It is too difficult to store. d. It is too difficult to launder.
b. It is not a good microbe barrier.
How can you tell if a disinfectant has been registered with the EPA? a. Its label displays a blue "R" b. Its label displays a registration number c. Its label states that it is tuberculocidal d. Its label states that it is a hospital disinfectant
b. Its label displays a registration number
How would you sterilize a plastic, reusable, rubber dam frame that melts at 100°C (212°F)? a. Steam sterilizer b. Liquid chemical sterilant c. Dry heat sterilizer d. Unsaturated chemical vapor sterilizer
b. Liquid chemical sterilant
According to CDC how often is one to perform biological monitoring of a sterilizer? a. Once a day b. Once a week c. Once a month d. Every load
b. Once a week
According to the CDC how heat sensitive semicritical instruments be prepared for use? a. Thoroughly wiped down with alcohol. b. Processed with high-level disinfection. c. Sterilized in an ultrasonic cleaner. d. Heat sterilized.
b. Processed with high-level disinfection.
What is a housekeeping rather than clinical contact surface? a. Dental light handle b. Sink c. Switches on the handpiece unit d. Dental light switch
b. Sink
Why should heavy and/or sharp instruments not be packaged in paper bags for steam sterilization? a. These bags are too difficult to open after sterilization. b. The bags will get wet during sterilization and the instruments may puncture the bag or the bag may easily tear. c. These bags are not good microbial barriers so they give little protection to the instruments inside after sterilization. d. These bags cannot be adequately sealed before sterilization.
b. The bags will get wet during sterilization and the instruments may puncture the bag or the bag may easily tear.
What is sterility assurance? a. Using liquid sterilants on critical instruments with a submersion time of 20 hours. b. The correct performance of the proper instrument processing steps and monitoring of the sterilization step. c. Using two complete sterilizing cycles on instruments used on infectious patients. d. Managing the office infection control program so that no sharps injuries occur.
b. The correct performance of the proper instrument processing steps and monitoring of the sterilization step.
Why are two disinfecting towelettes used during the wipe-discard-wipe procedure? a. The first one wets the surface and the second one cleans the surface. b. The first one cleans the surface and the second one disinfects the surface. c. The first one disinfects the surface and the second one cleans the surface. d. The first one disinfects the surface and the second one re-disinfects the surface for double assurance.
b. The first one cleans the surface and the second one disinfects the surface.
Choose the meaning of a failed Bowie-Dick test. a. The instruments cleaned in an automatic instrument washer/disinfector are totally clean. b. There may be places in the sterilizer chamber that did not reach sterilizing temperature. c. The ultrasonically cleaned instruments are not totally clean. d. It's time to change the ultrasonic cleaning solution.
b. There may be places in the sterilizer chamber that did not reach sterilizing temperature.
What is the purpose of the second spray in the spray-wipe-spray procedure? a. To sterilize the surface. b. To disinfect the surface. c. To clean the surface. d. To wash off the previous spray material.
b. To disinfect the surface.
Why is it important to let instruments packaged in paper/plastic pouches, paper bags or sterilization wrap dry inside the steam sterilizer? a. To complete the killing of microbes that may have survived the sterilization process. b. To minimize tearing of packaging materials when handling the sterilized items and to avoid wicking c. To prevent water spots from appearing on the instruments. d. To let the chemical indicators fully turn the appropriate color.
b. To minimize tearing of packaging materials when handling the sterilized items and to avoid wicking
What should be done to a clinical contact surface after its protective surface cover has been carefully removed at the end of a patient appointment? a. Clean and disinfect the surface with an intermediate-level disinfectant and then add a fresh cover for the next patient. b. Clean and disinfect the surface with a low-level disinfectant and then add a fresh cover for the next patient. c. Clean and disinfect the surface with a high-level disinfectant and then add a fresh cover for the next patient. d. Nothing—just add a fresh cover for the next patient.
d. Nothing—just add a fresh cover for the next patient.
Manufacturers have added alcohol to which of the following types of disinfectants to make it tuberculocidal? a. Iodophors b. Phenolics c. Chlorines d. Quaternary ammonium compounds
d. Quaternary ammonium compounds
What type of disinfectants is not tuberculocidal? a. Chlorines b. Iodophors c. Complex phenols d. Quaternary ammonium compounds
d. Quaternary ammonium compounds
Your office just received a new disinfectant. What's the easiest way to find out how it should be used? a. Look up the product on the internet. b. Call the manufacturer. c. Contact the sales who recommended the product representative. d. Read its label.
d. Read its label.
Hospital disinfectants are low-level disinfectants that have been shown to kill: a. Streptococcus mutans, bacterial spores and Mycobacterium tuberculosis var. bovis are not tuberculodil or sporicidal. b. Mycobacterium tuberculosis var. bovis. c. Bacterial spores. d. Staphylococcus aureus, Salmonella choleraesuis, and Pseudomonas aeruginosa.
d. Staphylococcus aureus, Salmonella choleraesuis, and Pseudomonas aeruginosa.
What is the first step to be taken after a sterilization failure is detected through spore testing? a. Review procedure to identify problems. b. Repeat the cycle and observe. c. Determine the fate of the sterilizer. d. Take the sterilizer out of service.
d. Take the sterilizer out of service.
What's the rationale for the holding step as part of instrument processing? a. To remove as much of the bioburden as possible to give the sterilization step the best chance to work. b. To help ensure the proper functioning of the instruments after instrument processing. c. To help maintain sterility of the instruments after instrument processing. d. To facilitate the cleaning process by keeping the debris on the instruments from drying.
d. To facilitate the cleaning process by keeping the debris on the instruments from drying.
Which of the following protective barriers are to be worn when disinfecting a surface? a. Utility gloves b. Utility gloves and mask c. Utility gloves, mask, and protective clothing d. Utility gloves, mask, protective clothing, protective eyewear
d. Utility gloves, mask, protective clothing, protective eyewear
According to CDC how often is one to perform chemical monitoring of the sterilization process? a. With one package a day b. With one package a week c. With one package a month d. With every package in every load
d. With every package in every load
The reason for holding (presoaking) instruments prior to cleaning is to: a. prevent rusting. b. kill microbes c. reduce water spotting d. facilitate cleaning.
d. facilitate cleaning.
Which microbe is the most susceptible to the environment and usually dies within seconds to minutes outside the human body: a. hepatitis C virus. b. methicillin-resistant Staphylococcus aureus. c. Mycobacterium tuberculosis. d. herpes simplex virus
d. herpes simplex virus
Paper bags for steam sterilization are best used to package: a. metal impression trays. b. hand mirrors and napkin chains. c. explorers and periodontal probes. d. light weight nonsharp items.
d. light weight nonsharp items.
