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