RDA EXAM

according to the CDC, which infection control measure is considered the most critical for reducing the transmission of microbes in the healthcare setting?

hand washing

In a dental setting, the clinical supply refrigerator may be used for the preservation of?

bonding materials

a used dental anesthetic 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 communication standard is based on the premise that an employee has the right to know

chemicals in the office

which set of precautions 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 infection can be prevented through immunization

hepatitis B

according to the occupational safety and health administration (OSHAP), a blood-borne pathogens training program should include a general explanation of

the modes of disease transmission

routine hand washing removes

most of the transient microbes and some of the resident microbes

which of the following greatly reduces or eliminates bio-film in the dental unit water system

properly using chemical treatment

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 dental procedure is to

protect the DHCP from exposure to spatter

instrument cassettes should be wrapped

after cleaning and before sterilization

used radio-graph fixer solution 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 employee exposure to hazardous of infectious substances

when using the air water syringe during treatment, which of the following personal protective equipment are recommended by the CDC

gloves, mask, gown, and eye protection

according to the Centers of Disease Control and Prevention, patient-care items that penetrate soft tissue are categorized as

critical

the purpose of holding solution is to

prevent hardening of debris and body fluids on intruments

which barrier should be removed before temporarily leaving a patient 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

Hazard Communication Standard

besides alcohol, which of the following is common antimicrobial 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 direction

exposure if dental healthcare personnel to nitrous oxide gases can be reduced by

using a scavenging system on the nitrous oxide equipment

when putting on personal protective equipment, which barrier should be put on last, just before patient care begins

gloves

to prepare for sterilization, the high speed hand piece and reusable air water syringe tip should be flushed with water

after each patient

who is responsible for the evaluation of hazardous chemicals

chemical manufacturers and importers

during normal use, which of the following is the most likely hazard for dentist using a curing light

eye exposure to the light

an exposure control plan must be updates

annually and when new or modified tasks are introduced

wearing a punctured glove during patient care may result in which type of microbial contact

droplet

work practice controls include the use of a

one handed recapping technique

heat sterilization of extracted teeth may result in

the vaporization of mercury, presenting a health hazard

a person with a latent tuberculosis infection will

have a positive skin test and no symptoms of active tuberculosis

what is the minimum temperature a steam sterilizer should reach to achieve sterilization

121 degrees C

which of the following is an example of a clinical contact surface

countertops

which of the following is recommended to minimize occupational exposure to atmospheric nitrous oxide

use a properly fitted nasal patient mask

who is responsible for appropriate regulated waste disposal

the generating facility

according to the OSHA bloodborne pathogens standard, each dental office must have an exposure control plan that is

written and reviewed at least once a year

the main purpose of surgical hand antisepsis is to

reduce the change for contamination of the patient if the gloves become punctured or torn

according to the OSHA bloodborne pathogen standard, a contaminated sharps container should be

puncture resistant and closable

according to the CDC, how long should sterilization monitoring records be kept

as required by state and local regulations

which of the following would be regulated under OSHA's hazard communication standard

bonding etchand

to limit contamination, single dose, inject-able (parenteral) medications should be

discarded after each use including left over contents

what is the recommended procedure when a sterilizer fails two consecutive spore tests

do not use the sterilizer until the reason for failure has been determined and corrected

according to the OSHA bloodborne pathogen standard, the written exposure control plan must be updated atleast

annually

when should chair side environment barriers be changed

after every patient

according to CDC, biological indicators for assessing sterilization are to be used

weekly

the "dirty" area of the instrument processing area is used for instrument

cleaning

what type of gloves should be worn to protect the hands of dental healthcare personnel during instrument processing and operatory clean up

utility housekeeping

the correct steps to take when glove rips or tears during a procedure are

remove the glove, wash and dry hands, and place new glove

the purpose of dating packages of sterilized interments is to

retrieve packs in the even of a sterilization failure

closing the lip and spitting into a saliva ejector may cause

retraction toward the patients mouth

a scavenger unit is used for respiratory protection during the use of

nitrous oxide

according to OSHA protective eyewear, surgical masks, gloves, and gowns or lab coats are

personal protective equipment

the primary reason a surgical face mask must be used during a dental procedure is to

protect the DHCP from exposure to spatter

using traditional radiographic procedures which of the following is considered a clinical contact surface

x-ray control panel

mechanical monitoring of the sterilization process should occure when

every load

the primary active agent in the solution used for unsaturated chemical vapor sterilization is

formaldehye

what is the proper management for work surfaces that become contaminated with blood

clean and then disinfect

which of the following demonstrates an appropriate fill level for sharps container

3/4 full

what agency regulates the registration of hospital disinfectants

EPA

which of the following is the best environmental infection control practice for clinical contact surfaces with irregular surfaces (e.g. switches, connects, etc)

covering surfaces with fluid impervious barriers

routine hand washing for dental healthcare personnel includes the use of

water and plain liquid soap

a surgical mask should be changed

after every patient

which of the following steam autoclave setting and times are effective for sterilization of wrapped instruments

121 degrees C (250 degrees F) and 15 psi for 30 minutes

according to OSHA, safety measures that should be taken when using bonding materials with potential chemical hazards must be found in a

material safety data sheet

which of the following indications is placed inside every package of instruments prior to sterilization

chemical

instruments with the greatest risk of transmitting infection are

critical instruments

torn gloves should be replaced

as soon as possible

what are the three types of sterilization monitoring

mechanical, chemical and biological

to reduce the risk of disease transmission in the dental office, it is recommended to

use disposable items whenever possible

which of the following is regulated medical waste

biopsy tissue

which of the following best describes the appropriate container for a biopsy specimen

single-use leak proof container with a biohazard symbol

which of the following is recommended for managing contamination of digital radiographic sensors that cannot be heat sterilized

the use of impervious barriers followed by cleaning and disinfection

which of the following is the best method for managing components of dental instruments that cannot be detached from the dental unit

cover with impervious barriers that are changed between each patient

Isopropyl alcohol performs best as a(n)

antiseptic

a dental assistant who receives an accidental exposure on the skin from contaminated source should first

wash the exposed skin with soap and water

the mechanism of disease transmission for influenza is

droplet

sterile surgical gloves sold in the united states must meet the standards of which regulatory agency

food and drug administration (FDA)

which microorganism is used to identify a disinfectant as intermediate level

M.tuberculosis var bovis

How must contaminated reusable sharp instruments be transported from the treatment area to the processing area

in a puncture resistant container that is leak proof on the sides and bottom

according to the CDC, to reduce the contamination of cleaning solutions, reusable mops used on housekeeping surfaces should be

cleaned and dried before reuse

the microbial skin flora that do not colonize and do not survive on the hands for long periods are

transient flora

solution used for cooling and irrigating during oral surgical procedures are best delivered though

a sterile delivery device

oral surgical procedures require the use of

sterile irrigating solutions using a sterile delivery system

immunization against influenza is administered

once a year

which of the following is an example of an OSHA required sharp with engineered injury protection

a self sheathing needle attached to a dental anesthetic syringe

according to the OSHA bloodborne pathogen standard protective eyewear must have

solid slide shields

one of the most important sources in preventing the spread of disease is proper hygiene of one's

hands

while cleaning contaminated instruments an assistant receives a per-cutaneous injury to the finer, the assistant should first

wash hands with soap and water

according to the CDC how long should sterilization monitoring records be kept

as required by state and local regulations

prior to sterilization loose contaminated instruments are processed in an ultrasonic cleaner to

remove large debris

what is the length of time that employers must maintain hazard communication training records

training records are not required

sharps containers in dental practice settings must be

replaced when items reach the marked fill line on the container

a single use item reduces the risk of disease transmission because it is

discarded and not reused

what type of cleaning machine is used to clean contaminated instruments prior to sterilization

ultrasonic

which of the following devices have been associated with dental water line biofilm

ultrasonic scalers