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California RDA written exam Questions and answers | Updated 2024/25
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California RDA written exam Questions and answers | Updated 2024/25
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California RDA written exam Questionsand answers | Updated 2024/25
according to the CDC which infection control measure is considered the most critical for
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reducing the transmission of microbes in the health care setting? - hand washing
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in a dental setting the clinical supply refrigerator may be used for the preservation of -
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bonding materials
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ii A used dental anesthetic needle is an example of - regulated waste
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Employees must receive training regarding hazardous chemicals at which interval? -
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upon hire and whenever a new hazard is introduced
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The OSHA Hazard Communication Standard is based on the premise that an employee
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has the right to know about - chemicals in the office
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ii Which set of precautions is intended to prevent exposure to all body fluids? - Standard
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ii The majority of the spray produced by dental hand pieces consists of - saliva
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which of the following viral infections can be prevented through immunization? - Hepatitis
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B
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According to the Occupational Safety and Health Administration (OSHAP), a bloodborne
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pathogens training program should include a general explanation of - the modes of
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disease transmission
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Routine hand washing removes - most of the transient microbes and some of the resident
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microbes
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Which of the following greatly reduces or eliminates biofilm in the dental unit water
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system? - properly using chemical treatments
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which of the following modes of disease transmission best describes a human bite? -
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parenteral
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the primary reason a surgical face mask must be used during a dental procedure is to -
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protect the DHCP from exposure to spatter
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ii Instrument cassettes should be wrapped - after cleaning and before sterilization ii ii ii ii ii ii ii ii ii ii ii ii
ii Used radiograph fixer solution is usually considered - hazardous waste
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, Which party is responsible for ensuring a Material Safety Data Sheet is available in the
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work place for each hazardous material? - Employer
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Which of the following statements most accurately defines engineering controls? -
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Materials and devices that prevent employees exposure to hazardous or infectious
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substances
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When using the air water syringe during dental treatment which of the following personal
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protective equipment are recommended by the CDC? - gloves, mask, gown, and eye
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protection
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According to the Center for Disease Control and Prevention, patient-care items that
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penetrate soft tissue are categorized as - critical
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The purpose of a holding solution is to - prevent hardening of debris and body fluids on
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instruments
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Which barrier should be removed before temporarily leaving a patient to retrieve supplies?
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- gloves
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The majority of organisms that make up dental unit waterline biofilm consists of - water
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bacteria
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Material Safety Data Sheet (MSDS) are required by OSHA'S - Hazardous
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Communication Standard
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Besides alcohol, which of the following is a common antimicrobial agent found in hand
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hygiene products? - Chlorohexidine
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The accessibility of the exposure control plan for employees is the responsibility of the -
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employer
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ii High- level disinfectants should be used - according to the manufacturer's directions
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Exposure of dental heathcare personnel to nitrous oxide gases can be reduced by - using
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a scavenger system on the nitrous oxide equipment
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When putting on personal protective equipment, which barrier should be put on last, just
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before patient care begins? - gloves
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To prepare for sterilization, the high-speed hand piece and reusable air-water syringe tip
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should be flushed with water - after each patient
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Who is responsible for the evaluation of hazardous chemicals? - chemicals
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manufacturers and importers
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, During normal use, which of the following is the most likely hazard for a dentist using a
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curing light? - eye exposure to the light
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An exposure plan must be updated - annually and when new or modified tasks are
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introduced
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Wearing a punctured gloves during patient care may result in which type of microbial
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contact? - direct
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ii Work practice controls include the use of a - one-handed recapping technique
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Heat sterilization of extracted teeth may result in - the vaporization of mercury, presenting
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a health hazard.
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A person with a latent tuberculosis infection will - have a positive skin test and no
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symptoms of active tuberculosis
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Which is the minimum temperature a steam sterilizer should reach to achieve sterilization?
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- 121 degrees C
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ii Which of the following is an example of a clinical contract surface? - countertops
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which of the following is recommended to minimize the occupational exposure to
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atmospheric nitrous oxide? - use a properly fitted nasal patient mask
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ii who is responsible for appropriate regulated waste disposal? - the generation facility
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According to the OSHA Bloodborne Pathogens Standard, each dental office must have a
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exposure control plan that is - written and reviewed at least once every year
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The main purpose of surgical hand antisepsis is to - to reduce the chance for
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contamination of the patient if the glove become punctured or torn.
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According to the OSHA Bloodborne Pathogens Standard, a contaminated sharps
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container should be - puncture resistant and closable
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According to the CDC, how long should sterilization monitoring records be kept? - As
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required by state and local regulations
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Which of the following would be regulated under OSHA's Hazard Communication
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Standard? - bonding etchant
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To limit contamination, single- dose injectable medication should be - discarded after
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each use including leftover contents
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