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Worksheetsmicro review
Total questions: 66
Worksheet time: 33mins
Overgloving refers to
using an excessive quantity of examination gloves.
donning several pairs of examination gloves at once.
wearing heavy utility gloves over examination gloves.
covering examination gloves with a pair of plastic gloves.
Heat-resistant gloves are designed for which task?
Precleaning
Handling chemicals
Unloading sterilizers
Handling contaminated items
Which benefit is associated with properly fitted exam gloves?
Improves circulation
Prevents hand fatigue
Reduces hand sweating
Increases tactile perception
Which protective barrier is donned last, before treating a client?
Mask
Gloves
Goggles
Uniform
Which step is first in the chain of chairside asepsis?
Place the patient's bib
Put on mask and eyewear.
Unpackage the instruments.
Wash, rinse, and dry hands.
Which type of hand hygiene completely eradicates resident flora?
routine
surgical
at the beginning of the day
none of the above
________ water should be used to rinse lathered soap from the hands?
cold
hot
Luke warm
warm
Which hand hygiene equipment facilitates cross-contamination?
Foot-operated faucet
Elbow faucet handles
Automatic soap dispenser
Squeeze bottle soap dispenser
Which waste product is classified as regulated medical waste?
Solidified alginate
Contaminated sharps
Dirty chemical solutions
Used patient napkins, paper towels, and fluoride trays
Infectious waste is also called:
hospital waste
biohazard waste
regulated medical waste
non regulated medical waste
The two basic types of dental waste are:
hospital and medical waste.
hospital and infectious waste.
disposable and nondisposable waste.
regulated medical and nonregulated medical waste.
Teeth are discarded as:
pathological waste.
contaminated sharps.
liquid or semiliquid blood.
other potentially infectious material (OPIM).
The Center for Disease Control and Prevention (CDC) encourages:
developing a written medical waste management program.
not to throw anything out
disregarding state, and local waste management regulations.
concealing potentially hazardous nature of medical waste.
Syringes should be ________ in the sharps container.
packed tightly
arranged loosely
dropped vertically
dropped horizontally
Which sterilization method is preferred to neutralize pathological waste?
dry heat oven
steam autoclave
liquid sterilant
unsaturated chemical vapour
How should sharps be discarded?
throw them in the garbage
flush them down the toilet
place in a recycling bin
drop in a leakproof, puncture-resistant container
Sharps containers should be located:
as close as possible to the work area
in the laboratory
at the back exit
near the operator entrance
Which water line characteristic results in the largest accumulation of biofilm?
short length
long length
small diameter
large diameter
The air/water syringe should be flushed for a minimum of ____ between clients.
20 seconds
45 seconds
1 minute
10 seconds
Flushing the dental unit water line:
is not recommended by the CDC.
effectively eliminates biofilm buildup.
reduces the microbial count temporarily.
According to the CDC, semi-critical items should be cleaned and:
sterilized by heat
treated with low level disinfectant
treated with high level disinfectant
treated with medium level disinfectant
What is the first step in processing instruments?
Remove gross debris from instruments by carefully wiping.
Check external chemical indicators to verify sterilization
Don PPE clothing, mask, eyewear, and heavy utility gloves.
Place contaminated instruments in ultrasonic cleaning basket.
Which processing procedure is specific to steam sterilization?
Apply rust inhibitor to non–stainless steel items.
Seal and label the package or wrap the cassette.
Check instruments for broken tips and cleanliness.
Ensure chemical indicators are visible on the outside of package.
Ultrasonic cleaning solution should be discarded and replaced:
weekly
hourly
at least once a day
when the solution looks low
Biological spore testing should occur:
once a week
with every flash sterilization cycle
when training a new employee in sterilization
all of the above
Overloading the sterilization chamber:
melts or distorts items
reduces the time needed to achieve sterilization.
produces insufficient heat to achieve sterilization.
increases heat time, slows penetration of sterilizing agent
Pasteur is acknowledged for developing the processes of pasteurization and:
Immunization
hand washing
alcohol making
Denture stomatitis is caused by which infectious agent?
fungi
virus
bacteria
protozoa
Which sequence accurately depicts the life cycle of a virus?
Penetration, adsorption, assembly, release, uncoating
Adsorption, penetration, uncoating, assembly, release
Uncoating, release, assembly, penetration, adsorption
Release, penetration, uncoating, adsorption, assembly
Which agent effectively treats thrush?
anti viral
anti fungal
antibiotic
penicillin
What is the most significant source of infectious disease in the dental office?
Clients’ mouths
Clinician’s hands
Dental water line
None of the above
Tuberculosis is usually contracted through which route of entry?
ingestion
inhalation
breaks in skin
mucous membrane
Which of the following aseptic measures does NOT protect the mucous membranes?
face shield
surgical mask
protective eyewear
latex gloves
Which is not a chemical defense?
complement system
lysozyme
macrophage
interferon
________ initiate the immune response.
Antibodies
B cells
T cell
Antigens
Which type of disease evolves and transforms from a known infectious disease?
emerging
extinct
recognizing
biological
Which is not responsible for the emergence of an infectious disease?
technology
microbial changes
economic changes
changes in human demographics
Infection control procedures are designed to:
interfere with the development and spread of disease.
differentiate high-risk patients from low-risk patients.
improve the diagnostic capabilities of the dental team.
identify contagious diseases and their associated pathogens.
Which procedure reduces the spread of disease from the community to the client?
Disinfect impressions
Sterilize instruments and headpieces
Disinfect the inside of dental unit water lines
Change protective clothing before leaving the dental office
Which personal protective equipment protects again inoculation by direct contact?
latex or vinyl gloves
face shield
mask
heavy utility gloves
A rubber dam effectively reduces the spread of infection from:
one patient to another.
the community to the patient.
the patient to the dental team.
the dental team to the patient.
Which practice inhibits microbial spread by enhancing host resistance?
sterilization
immunization
mouth rinsing
protective clothing
Which hand hygiene protocol is not recommended by the CDC?
Fingernails should be kept at ¼ inch length or less.
Hand lotion should be used to prevent skin dryness.
Hand hygiene should include antimicrobial soap and water.
Hand sanitizer should be used on visibly soiled hands.
how should one load a sterilizer?
place the packages on their edges
pack the packages tight to eliminate as much air as possible
stack the packages on top of the other
put only one package at a time in the sterilizer
the rationale for packaging instruments before placing them into a sterilizer is to:
eliminate water spots
maintain their sterility after sterilization
prevent rusting of carbon steel item
reduce by half the time needed at the sterilizing temperate
what type of sterilization causes carbon steel instruments to rust?
steam
dry heat
unsaturated chemical vapor
ethylene oxide gas
a chemical indicator reveals that an item:
is sterile
is clean
has been packaged properly
has been processed through a heat sterilizer
the purpose of an aluminum foil test is to:
see if the steam in a sterilizer is at the proper temperature
measure the strength of a liquid sterilant/high-level disinfectant
assess the kill of bacterial spores in a sterilizer
determine whether an ultrasonic cleaner chamber has an even distribution of sonic energy
the main rationale for cleaning instruments before sterilizing is to:
give the sterilization procedure the best chance to work
prevent the formation of water spots on the instruments
reduce rusting of instruments
eliminate the need for packaging the instruments
placing wet instruments into a dry heat heat sterilizer or an unsaturated chemical vapour sterilize can:
prevent sterilization
reduce the sterilization time by half
counteract the antirusting nature of these sterilizers
instrument packages are wet after the sterilization portion of which of the following sterilizer cycles?
dry heat
steam
unsaturated chemical vapour
wet packages should be allowed to dry inside the sterilizer because paper packaging material may tear on handling and because:
the instruments will have water spots
the chemical indicators will not have changed color yet
of wicking
the active ingredient in the unsaturated chemical vapour sterilization process is:
glutaraldehyde
peracetic acid
formaldehyde
hydrogen peroxide
the first thing to do after sterilization failure is to:
retest the sterilizer with biological indicators
take the sterilizer out of service for processing patient care items
review the sterilizer operating instructions
inform the occupational safety and health administration
the sterilization process is described best as being:
virucidal
tuberculocidal
sporicidal
bactericidal
what sterility assurance procedure should be performed while sitting up for the next patient?
the instrument packages should be opened and the instruments should be wiped with alcohol
the instrument packages should be observed for tears or punctures before being opened
the outside of the instrument packages should be wiped with alcohol to remove dust
critical patient care items are to be cleaned and ______ for reuse
low-level disinfected
intermediate- level disinfected
sterilized
legionella bacteria can cause what type of disease in susceptible persons?
damage to the liver
pneumonia
intestinal damage
skin disease
besides legionella, what other two bacteria that may be present in dental unit water are of the most concern in causing infections in compromised persons?
streptococcus and pseudomonas
fusobacterium and micrococcus
micrococcus and mycobacterium
pseudomonas and mycobacterium
what is the maximum acceptable level of bacteria in dental unit water as recommended by the renters for disease control and prevention?
200,00 CFU/mL
1000 CFU/mL
500 CFU/mL
200 CFU/mL
what role does dental unit water line biofilm play in the microbial contamination of dental unit water?
biofilm has no role
biofilm traps all the bacteria in the incoming water and keeps the levels of bacteria in the outgoing water low
biofilm sheds bacteria into the water, causing increased levels of bacteria in the outgoing water
the level of microbes in water coming out of an unmodified dental unit is almost always:
the same as drinking water
higher than drinking water
lower than drinking water
when does the centers for disease control and prevention recommend that dental unit water lines with the attached handpiece should be flushed?
between every patient
once a day
one a week
every 10 minutes during an appointment
all of the following are reasonable approaches to improve dental unit water quality except one. the exception is:
replacing the water lines once a week
using an independent water reservoir
using antimicrobial chemicals in the water
using filters to remove the microbes from the water
potable water is the same as:
dental unit water
sterile water
drinking water
river water
which of the following attacks dental unit water line biofilm?
a filter inserted into the water line just before the handpiece
use of distilled water in an independent water reservoir
addition of an antimicrobial agent to the water
