QUESTIONS AND ANSWERS SURE A+
✔✔After each patient or when wet/soiled during tx - ✔✔How often should masks be
changed?
✔✔Protective eyewear, side shields - ✔✔What does a face-shield replace? When
wearing one you don't need to wear______
✔✔Some surfaces are difficult to disinfect/clean (A/W syringe, hoses) - ✔✔Why are
barriers used on surfaces?
✔✔Beginning of day, when contaminated during barrier removal, end of day - ✔✔How
often are surfaces covered with barriers disinfected?
✔✔Chair, keyboard, light handle, tray - ✔✔4 surfaces in operatory that should be
covered by barriers
✔✔semi-critical items - ✔✔Items that touch oral mucosa but do not penetrate the body
are classified as
✔✔fully sterilized - ✔✔How are critical and semi-critical items handled?
✔✔semi-critical - ✔✔Mouth mirror is an example of that type of item
✔✔pre-clean, spray-wipe-spray or wipe-discard-wipe - ✔✔What should be done prior to
DISINFECTING environmental surfaces
✔✔intermediate level - ✔✔What product level is approved for surface and equipment
disinfection?
✔✔tuberculosis - ✔✔what organism must an intermediate level disinfectant kill
✔✔10 min - ✔✔how long must surfaces remain wet when disinfecting
✔✔5 days - ✔✔Amount of time it takes for biofilm to form in a new dental unit
✔✔2-3 mins at start of each day, 20-30 seconds in between patients - ✔✔How long are
waterlines flushed at start of each day and in between pt's?
✔✔after long breaks, after unit fails water test - ✔✔At CCCC when is water system
shocked with Sterilex?
,✔✔Use 1 ICX tablet in bottle water, flush 2-3 mins at start of day, flush 20-30 secs
between pt's - ✔✔At CCCC how are waterlines maintained daily?
✔✔At end of semester or before a long break - ✔✔At CCCC when are waterlines
purged?
✔✔end of each day with enzymax cleaner - ✔✔When are HVE and vacuum lines
cleaned?
✔✔sharps container - ✔✔Where are ext teeth disposed of?
✔✔facultative microbes - ✔✔Microbes that grow in presence or absence of oxygen
✔✔smaller than bacteria, obligate intracellular parasite, nucleic acid core (DNA or
RNA), capsid and envelope - ✔✔Structure of a virus
✔✔replication stage - ✔✔In what stage of the virus life does the host cell synthesize
new viral DNA/RNA?
✔✔prions and endospores - ✔✔These microbes are most resistant to chemicals
✔✔Ethylene oxide gas, gluteraldehyde liquid - ✔✔List 2 high level disinfectants
✔✔10 hrs - ✔✔How long does it take to sterilize instruments in gluteraldehyde?
✔✔when sterilizing liquid items - ✔✔When would you not use a steam autoclave?
✔✔evaporates quickly, corrosive, not sporicidal - ✔✔Why is alcohol not used as a
surface disinfectant?
✔✔Iodophors, hypochlorites, synthetic phenols, chlorine compounds - ✔✔Which
chemical disinfectants have to be mixed daily?
✔✔gluteraldehyde and hydrogen peroxide - ✔✔Which disinfectants are used for
immersion
✔✔ultrasonic bath - ✔✔what method of cleaning instruments is most effective
✔✔15 mins - ✔✔How long are cassettes placed in ultrasonic for
✔✔daily or when soiled - ✔✔How often is ultrasonic bath drained and disinfected
✔✔prevent aerosols - ✔✔Why is it important to cover ultrasonic bath before operating?
,✔✔prevent debris from drying to instruments, easy cleaning - ✔✔Purpose of holding
solution is to
✔✔steam autoclave - ✔✔This sterilization method dulls instruments
✔✔20-30 mins, 15 psi, 250F (121C) - ✔✔Time-temp-pressure and cycle for steam
autoclave
✔✔Long cycle, discolors fabrics, not for heat sensitive items - ✔✔Disadvantage of dry
heat sterilization
✔✔Close, allow oven to reach proper sterile temp, re-start cycle - ✔✔What must be
done if dry heat oven is open during cycle
✔✔1x/week, when training new employees, after repair, when running implantable
devices, using new packaging or new sterilizer - ✔✔How often are sterilizers biologically
monitored?
✔✔gluteralderhyde - ✔✔Sterilization method that cannot be biologically monitored
✔✔Hep A, Hep E - ✔✔Which type of Hep does not have a carrier
✔✔Hep A, Hep E - ✔✔Which type of Hep is not bloodborne
✔✔immunoglobulin or Hep B vaccine - ✔✔What is given to a non-immunized healthcare
worker who has been exposed?
✔✔notify supervisor, get consent from clinician to perform HIV serolytic test - ✔✔If
clinician is exposed but pt source is unknown what should be done?
✔✔coughing, night sweats, fever - ✔✔3 symptoms of TB
✔✔economically depressed population - ✔✔What segment of the population is at an
increased risk for TB
✔✔Airborne/Droplet transmission of active respiratory infection from person to person -
✔✔How is TB spread?
✔✔False - ✔✔If a person has been diagnosed with TB they will always test positive for
TB with a skin test (T/F)
✔✔oral candidiasis - ✔✔Fungal infection sometimes seen intraorally
, ✔✔3-6 weeks after exposure mono-like symptoms - ✔✔How long after exposure to HIV
would you expect to see acute HIV?
✔✔male to male sexual contact - ✔✔What group has the highest prevalence of HIV?
✔✔IV drug users, unprotected sex, substance abuse - ✔✔3 high risk behaviors for HIV
✔✔yes - ✔✔Is an employer responsible for offering Hep B immunizations?
✔✔eating, drinking, smoking, applying cosmetics - ✔✔What things should not be done
in treatment areas
✔✔stop sterilizer, allow to cool, re-sterilize instruments - ✔✔What should be done if
sterilization cycle is interrupted before completion
✔✔manufacturing and labeling of med devices, safety of drugs and devices, safety and
efficacy of disinfectants, medical waste, worker safety, instrument sterilizing - ✔✔What
is regulated by fed govt
✔✔probing, scaling, root planing - ✔✔If a pt requires pre-med but did not take it prior to
apt, what cannot be done at the pt's apt?
✔✔What is the composition of the NC State Board of Dental Examiners? - ✔✔6 dentists
who are licensed to practice dentistry in NC
1 dental hygienist who is licensed to practice dental hygiene in NC
1 person who shall be a citizen and resident of NC and who shall be licensed to practice
neither dentistry nor dental hygiene
✔✔What are the voting powers of each member of the Board? - ✔✔The dental
hygienist or the consumer member cannot participate or vote in any matters of the
Board which involves the issuance, renewal or revocation of the license to practice
dentistry in the State of North Carolina. The consumer member cannot participate or
vote in any matters of the Board which involve the issuance, renewal or revocation of
the license to practice dental hygiene in the State of North Carolina. Members of the
Board licensed to practice dentistry in North Carolina shall have been elected in an
election held as hereinafter provided in which every person licensed to practice dentistry
in North Carolina and residing or practicing in North Carolina shall be entitled to vote.
✔✔Who is eligible to vote in the election of dentists and dental hygienists to serve on
the Board? - ✔✔Every dentist with a current North Carolina license residing or
practicing in North Carolina shall be eligible to vote in elections of dentists to the Board.
Every dental hygienist with a current North Carolina license residing or practicing in
North Carolina shall be eligible to vote in elections of dental hygienists to the Board. The
holding of such a license to practice dentistry or dental hygiene in North Carolina shall