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CALIFORNIA RDA WRITTEN EXAM QUESTIONS AND VERIFIED ANSWERS | LATEST UPDATE 2024/2025
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QUESTIONS AND ANSWERS
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CALIFORNIA RDA WRITTENEXAM QUESTIONS AND
VERIFIED ANSWERS | LATEST
UPDATE 2024/2025
According to the CDC which infec1on control measure is considered the most
cri1cal for reducing the transmission of microbes in the health care se8ng?
Hand washing
In a dental se8ng the clinical supply refrigerator may be used for the
preserva1on of
Bonding materials
A used dental anesthe1c needle is an example of
Regulated waste
Employees must receive training regarding hazardous chemicals at which
interval?
Upon hire and whenever a new hazard is introduced
The OSHA Hazard Communica1on Standard is based on the premise that an
employee has the right to know about
Chemicals in the office
Which set of precau1ons is intended to prevent exposure to all body fluids?
Standard
The majority of the spray produced by dental hand pieces consists of
Saliva
Which of the following viral infec1ons can be prevented through
immuniza1on?
Hepa11s B
,According to the Occupa1onal Safety and Health Administra1on (OSHAP), a
bloodborne pathogens training program should include a general explana1on
of
The modes of disease transmission
Rou1ne hand washing removes
Most of the transient microbes and some of the resident microbes
Which of the following greatly reduces or eliminates biofilm in the dental unit
water system?
Properly using chemical treatments
Which of the following modes of disease transmission best describes a human
bite?
Parenteral
The primary reason a surgical face mask must be used during a dental
procedure is to
Protect the DHCP from exposure to spaSer
Instrument casseSes should be wrapped
ATer cleaning and before steriliza1on
Used radiograph fixer solu1on is usually considered
Hazardous waste
Which party is responsible for ensuring a Material Safety Data Sheet is available
in the work place for each hazardous material?
Employer
Which of the following statements most accurately defines engineering
controls?
Materials and devices that prevent employees exposure to hazardous or
infec1ous substances
,When using the air water syringe during dental treatment which of the
following personal protec1ve equipment are recommended by the CDC?
Gloves, mask, gown, and eye protec1on
According to the Center for Disease Control and Preven1on, pa1ent-care items
that penetrate soT 1ssue are categorized as
Cri1cal
The purpose of a holding solu1on is to
Prevent hardening of debris and body fluids on instruments
Which barrier should be removed before temporarily leaving a pa1ent to
retrieve supplies?
Gloves
The majority of organisms that make up dental unit waterline biofilm consists
of
Water bacteria
Material Safety Data Sheet (MSDS) are required by OSHA'S
Hazardous Communica1on Standard
Besides alcohol, which of the following is a common an1microbial agent found
in hand hygiene products?
Chlorohexidine
The accessibility of the exposure control plan for employees is the
responsibility of the
Employer
High- level disinfectants should be used
According to the manufacturer's direc1ons
Exposure of dental heathcare personnel to nitrous oxide gases can be reduced
by
Using a scavenger system on the nitrous oxide equipment
, When pu8ng on personal protec1ve equipment, which barrier should be put
on last, just before pa1ent care begins?
Gloves
To prepare for steriliza1on, the high-speed hand piece and reusable air-water
syringe 1p should be flushed with water
ATer each pa1ent
Who is responsible for the evalua1on of hazardous chemicals?
Chemicals manufacturers and importers
During normal use, which of the following is the most likely hazard for a den1st
using a curing light?
Eye exposure to the light
An exposure plan must be updated
Annually and when new or modified tasks are introduced
Wearing a punctured gloves during pa1ent care may result in which type of
microbial contact?
Direct
Work prac1ce controls include the use of a
One-handed recapping technique
Heat steriliza1on of extracted teeth may result in
The vaporiza1on of mercury, presen1ng a health hazard.
A person with a latent tuberculosis infec1on will
Have a posi1ve skin test and no symptoms of ac1ve tuberculosis
Which is the minimum temperature a steam sterilizer should reach to achieve
steriliza1on?
121 degrees C
Which of the following is an example of a clinical contract surface?
Countertops
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