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NDAEB INFECTION CONTROL EXAM WITH COMPLETE SOLUTIONS
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Process indicators: a. recognize the measurement of the duration of the sterilization time. b. indicate the pressure of the sterilization unit. c. identify instruments packs that have been exposed to certain temperature. d. distinguish between prerinsed and nonrinsed instruments prior to sterilization. - ANSWER C
The record of each infection control training session does NOT require which detail? a. Date of the session b. Name of the presenter c. Training test scores d. Names of attending employees - ANSWER C
Which best describes an intermediate-level surface disinfectant? a. Sporicidal b. Bacteriocidal c. Virucidal d. Tuberculocidal - ANSWER D
The CDC recommends biological monitoring of sterilization equipment at which interval? a. With every load b. Weekly c. Monthly
d. Every 2 months - ANSWER B
Sterile surgical gloves are required for which procedure? a. Placing a composite b. Removing a suture c. Bonding a crown d. Assisting a mandibular resection - ANSWER D
The OSHA Hazard Communications Standard requires employers to do all EXCEPT: a. tell employees about the identity and hazards of chemicals in the workplace. b. implement a hazard communication program. c. maintain accurate and thorough MSDS records. d. submit annual urinalysis results of all employees. - ANSWER D
The written exposure control plan must be reviewed and updated: a. annually. b. semiannually. c. before hiring a new employee. d. after an accidental exposure. - ANSWER A
Gloves are a principal component of which infection control practice? a. Patient and dental health care worker education b. Protective attire and barrier techniques c. Sterilization or disinfection of instruments d. Maintenance of the environment - ANSWER B
Biofilm in a dental unit waterline exemplifies which type of disease transmission?
c. Glutaraldehydes d. Phenols - ANSWER C
Containers of infectious waste (regulated waste) must be: a. labeled with the universal biohazard symbol. b. placed inside of a leak-proof container. c. sterilized before placing in general waste. d. handled the same as hazardous waste. - ANSWER A
The main source of infectious microorganisms in a dental office is: a. the practitioner's hands. b. airborne particles. c. water. d. patients' mouths. - ANSWER D
Recording the highest temperature reached during a sterilization cycle is an example of ____________ monitoring. a. physical b. chemical c. biological - ANSWER A
Which is true of latex or vinyl gloves? a. Gloves may be rewashed between patients and reused until damaged. b. Nonsterile gloves are recommended for examinations and nonsurgical procedures. c. Hands should not be washed before gloving. d. Hands should not be washed between patients. - ANSWER B
The high-volume evacuator (HVE): a. removes saliva and liquids slowly. b. removes large amounts of fluid and debris from the mouth. c. dispenses a focused stream of air. d. dispenses a condensed stream of compressed water. - ANSWER B
OSHA does NOT mandate the training of dental personnel in which area? a. Blood-borne Pathogens Standard b. Hazard communication standard c. Specialty safety standards d. General safety standards - ANSWER C
Which is an example of regulated medical waste? a. Used examination gloves b. Used disposable gowns c. Used anesthetic needles d. Used surgical masks - ANSWER C
Which combination produces the greatest amount of instrument rusting and dulling? a. Carbon steel instruments in a steam sterilizer b. Stainless steel instruments in an unsaturated chemical vapor sterilizer c. Carbon steel in a dry heat sterilizer d. Stainless steel instruments in a steam sterilizer - ANSWER A
An employee who voluntarily forgoes the hepatitis B vaccination is required to sign a(n): a. waiver stating the employee will never request the vaccine. b. waiver assuming the cost of the vaccine, should the employee change his or her
d. Poison control telephone number. - ANSWER D
OSHA inspections may occur randomly in an office with: a. 2 or more dentists. b. 75 or more patients. c. 5 or more operatories. d. 11 or more employees. - ANSWER D
Examination gloves used for dental treatment can be made of: a. latex. b. vinyl. c. clear plastic. d. either latex or vinyl. - ANSWER D
After removing the plastic surface cover from the clinical contact surface: a. clean and disinfect with an intermediate-level disinfectant and place a new cover. b. clean and disinfect with a low-level disinfectant and then add a new cover. c. clean and disinfect with a high-level disinfectant and recover. d. place a new plastic cover, as long as the underlying surface remains untouched. - ANSWER D
To be considered acceptable for use in dentistry, a disinfectant must be able to kill: a. the HIV virus. b. the hepatitis B virus. c. tuberculosis bacteria. d. Legionella bacteria. - ANSWER C
Which agency requires employers to provide the hepatitis B immunization? a. Centers for Disease Control and Prevention b. Occupational Safety and Health Administration c. Food and Drug Administration d. Environmental Protection Agency - ANSWER B
Which is NOT a component of hazard communication training? a. Identifying the hazards of chemicals and their proper handling b. Fostering availability and access of SDS to all staff c. Explaining the labeling of hazardous chemicals d. Collecting waivers for hepatitis B vaccinations - ANSWER D
Which does NOT minimize the amount of dental aerosols and spatter generated during treatment? a. Preprocedural mouth rinse b. Saliva ejectors c. Rubber dams d. High-volume evacuation - ANSWER A
Which is not considered a "sharp"? a. Metal matrix band b. Metal matrix retainer c. Orthodontic wire d. Needle - ANSWER B
Which is NOT infectious or regulated waste? a. Blood and blood-soaked materials
d. Overgloves are acceptable alone, as a hand barrier, in nonsurgical procedures. - ANSWER D
Which agency regulations apply to the handling of waste in the dental office? a. Occupational Safety and Health Administration (OSHA) b. Environmental Protection Agency (EPA) c. Centers for Disease Control (CDC) d. Federal Drug Administration (FDA) - ANSWER B
Utility gloves are worn when: a. mounting x-rays. b. disinfecting the treatment room. c. seating a patient. d. mixing dental materials. - ANSWER B
Which allergic reaction is most commonly associated with latex? a. Type I b. Type II c. Type III d. Type IV - ANSWER D
Protective clothing: a. is not required for charting because the risk of exposure is low. b. must prevent mucous membrane exposure to blood and other body fluids. c. can be worn home to be laundered. d. is also known as underclothing. - ANSWER B
The hepatitis B (HBV) vaccine must be offered to which category of employees? a. I b. II c. III d. I and II - ANSWER D
The MOST common route of disease transmission from the patient to the staff is a. direct contact. b. indirect contact. c. droplet infection. d. aerosol infection. - ANSWER A
Protective eyewear should have: a. extra-thick lenses. b. tinted lenses. c. side shields. d. spring-loaded ear rests. - ANSWER C
A chemical spill victim with immediate symptoms of dizziness, headache, nausea, and vomiting is experiencing: a. chronic chemical toxicity. b. acute chemical toxicity. c. chemical resistance. d. mild exposure. - ANSWER B
Which is a safety measure for managing noncontact scrap amalgam? a. Label the scrap amalgam container.
d. Inactivated - ANSWER A
The most important infection control law in dentistry is OSHA's: a. Fall Protection Standard. b. Respiratory Protection Standard. c. Blood-borne Pathogens Standard. d. Hazard Communication Standard. - ANSWER C
Central nervous system disorders, tremors, and kidney dysfunction are associated with increased exposure to: a. x-ray processing fumes. b. disinfectant aerosol. c. ambient nitrous oxide. d. mercury vapors. - ANSWER D
When do you need to change your protective clothing? a. After every patient b. Each half-day of work c. When visibly soiled d. After using a high-speed handpiece - ANSWER C
Which gloves are recommended to assist the placement of an amalgam? a. Sterile surgical b. Utility c. Examination d. Nonmedical - ANSWER C
Which technique is used to prevent surface contamination? a. Don utility gloves before placing appropriate surface covers. b. Apply appropriate surface covers before seating the patient. c. Place the sterile instrument cassette under the protective cover. d. Clean the underlying protected surface with a disinfectant between patients. - ANSWER B
Which is required for correct disposal of used orthodontic wire? a. Steam under pressure with emulsion b. Steam under pressure without emulsion c. Sharps container d. Spray/wipe/spray with surface disinfectant - ANSWER C
The process that inactivates all microbial life, including bacterial spores, viruses, bacteria, and fungi is called: a. sterilization. b. low-level disinfection. c. high-level disinfection. d. precleaning. - ANSWER A
A contaminated dental chart exemplifies which mode of disease transmission? a. Direct contact b. Indirect contact c. Droplet infection d. Airborne infection - ANSWER B
When using an ultrasonic cleaner, which is correct procedure? a. Routine cleaning takes about 60 seconds.
Which is a clinical touch surface? a. Instrument tray b. Light handle c. Countertop d. Handpiece holder - ANSWER B
Which item of personal protective equipment (PPE) is donned last? a. Gown b. Mask c. Gloves d. Eyeglasses - ANSWER C
Which protects the gingival tissue during laser bleaching? a. Tight-fitting plastic tray b. Resin-based, light-curable barrier c. Cotton rolls or folded 2×2 gauze d. Rubber dam - ANSWER B
Surgical masks used in dentistry a. protect against exposure to tuberculosis. b. totally prevent the inhalation of dental aerosols. c. prevent spatter from contacting mucous membranes. d. are required only when treating adults. - ANSWER C
In which method of sterilization can instruments be processed wet? a. Dry heat static air
b. Steam autoclave c. Unsaturated chemical vapor d. Rapid heat transfer - ANSWER B
Before disinfecting a clinical contact surface, a. wipe the surface with a high-level disinfectant. b. clean the surface. c. cover with plastic for at least 10 minutes. d. mist the surface with a diluted alcohol mixture. - ANSWER B
Which disinfectant tends to produce yellow staining? a. Alcohol b. Phenol c. Bleach d. Iodophor - ANSWER D
OSHA requires the use of Standard Precautions for: a. HIV-infected or AIDS patients. b. potentially disease-infected patients. c. patients not of record. d. all patients. - ANSWER D
Which federal agency is responsible for conducting research and making recommendations for the prevention of work-related disease and injury? a. OSHA b. NIOSH c. CDC
The EPA requires registered disinfectants used in dentistry to a. kill the organism mycobacterium tuberculosis. b. at least inactivate viruses. c. be viricidal. d. have no residual activity after application. - ANSWER A
The scavenging system: a. controls the flow of nitrogen oxide/oxygen. b. reduces the nitrogen oxide that escapes into the dental office atmosphere. c. carries nitrogen oxide/oxygen from the reservoir bag to the mask or nosepiece. d. delivers nitrogen oxide/oxygen to the patient as a nasal inhaler. - ANSWER B
Which face mask is optimal for pouring or mixing chemicals? a. Surgical b. Face shield c. Dome d. Mist respirator - ANSWER D
Which have the highest operating temperature and longest cycle time? a. Dry heat sterilizers b. Steam autoclaves c. Unsaturated chemical vapor sterilizers - ANSWER A
Which is NOT a clinical contact surface? a. Unit light handle b. Bracket table switch c. Operatory wall
d. Air-water syringe - ANSWER C
How does HIV cause AIDS? a. It destroys the liver. b. It diminishes the ability to control muscles. c. It paralyzes the organs. d. It destroys the body's defenses against disease. - ANSWER D
Dental professionals are to use surgical masks and protective eyewear: a. only during surgical procedures. b. whenever the high-speed handpiece is used. c. whenever spatter and aerosolized sprays of blood and saliva are likely. d. if desired. - ANSWER C
Dental unit waterlines are flushed for a. 30 seconds each morning and again at the end of the day. b. several minutes each morning and for 20 to 30 seconds between patients. c. 60 seconds each morning and for 30 seconds after treating an HIV-infected patient. d. 30 seconds each hour of the day. - ANSWER B
How often should spore testing of sterilizers be executed? a. First thing every morning b. Once a week c. After every "high-risk" patient d. If the sterilizer has been turned off for over 24 hours - ANSWER B
Which is NOT a recognized regulated medical waste?
