Deck 11: Infection Control

Question 1

Resident microflora are of primary concern to the dental profession because they constitute the pathogen group that includes hepatitis.

Answer 1

False

Question 2

The first step to accomplish the goal of infection control is for the dental assistant to maintain good health standards.

Answer 2

True

Question 3

Universal precautions means that all patients are treated as if they are infectious.

Answer 3

True

Question 4

When removing protective clothing, OSHA recommends that special care is to be taken with items that are considered potentially infectious.

Question 5

Most often when an OSHA guideline is made, the profession has a specific time frame in which to comply.

Question 6

There are many shortcuts available in dentistry; one of the best ones is in the area of asepsis.

Question 7

Following handwashing, one of the best ways to dry your hands is with a disposable towel.

Question 8

Foot-operated soap dispensers prevent unnecessary hand contamination.

Question 9

Following patient treatment and glove removal, gloves are placed into the regular waste receptacle.

Question 10

The rag wheel can be disposable or rinsed out and sterilized after use.

Question 11

All OSHA training could be accomplished by videotape viewing.

Question 12

As long as protection for the front of the eyes is provided, any glasses are an appropriate protective eyewear.

Question 13

Standard precautions are utilized prior to, during, and after each procedure.

Question 14

Both vinyl and latex gloves can be washed and reused.

Question 15

If sterilization has occurred, all forms of microorganisms have been destroyed.

Question 16

The patient should be offered protective eyewear.

Question 17

A type I allergic reaction to latex is the most common among allergies.

Question 18

In taking the patient's medical health history, it is important to update this information both verbally and in writing.

Question 19

It is recommended that to dispose of patient gloves, they go into a biohazard waste receptacle.

Question 20

A holding bath will disinfect any instrument placed in it for the proper length of time.

Question 21

Successful handpiece sterilization is accomplished by following the manufacturer's directions.

Question 22

Universal precautions mean ___________.

A) most patients are treated as if infectious
B) all patients are treated as if infectious
C) both a and b
D) neither a nor b

Question 23

Food-handler gloves are used in a dental procedure

A) They are not used in a dental procedure.
B) to remove hot items from the sterilizer
C) to clean the operatory
D) when placed over latex gloves to retrieve something inside a drawer

Question 24

OSHA training must involve which of the following personnel?

A) Full-time
B) Part-time
C) Temporary
D) All of the above

Question 25

Which written plan lists how to evaluate situations involving exposure?

A) Occupational exposure
B) Written exposure
C) Exposure determination
D) OSHA

Question 26

Polynitrile gloves can be sterilized.

Question 27

One of the best ways to prevent the spread of microorganisms from one person to another is by ___________.

A) handwashing
B) covering the mouth during a sneeze
C) handwashing with water and a microbial soap
D) handwashing with water and an antimicrobial soap

Question 28

An emollient is added to alcohol-based hand rubs to reduce microorganisms.

Question 29

Under which exposure category would the dental assistant be classified?

A) 1
B) 2
C) 3
D) None of the above

Question 30

At a minimum, a ________ handwash should be done.

A) 15-second
B) 30-second
C) 1-minute
D) 15-minute

Question 31

Where is the labeling and waste disposal information found for a product?

A) Ask the dentist.
B) There is never a problem disposing of any product.
C) MSDS
D) OSHA Communication Standard

Question 32

Items included in the Bloodborne Pathogens Standard are
1) Train all employees in a timely manner
2) Provide employees with everything to meet standard regulations
3) Provide all PPEs
4) Pay for the hepatitis B vaccination series
5) Establish standards for disposing of hazardous waste

A) 1, 2, 3, 4, 5
B) 1, 2, 3, 5
C) 1, 2, 3, 4
D) 1, 3, 5

Question 33

After the procedure, gloves that were not torn or ripped should be ___________.

A) washed, dried, and used until they are torn or ripped
B) disinfected for later use
C) sterilized for later use
D) removed and thrown away

Question 34

Antimicrobial means ___________.

A) sterilization
B) disinfection
C) growth inhibitor
D) all of the above

Question 35

Which regulatory body enforces the law that employers must protect their employees from exposure to infectious materials?

A) ADA
B) FDA
C) OSHA
D) EPA

Question 36

Examples of times when personal protective equipment (PPE) must be worn are ___________.

A) initial examination of patient
B) surgical extraction of a third molar
C) seating and positioning the patient
D) both a and b

Question 37

Some dental offices use dishwasher-disinfector devices in place of ultrasonic cleaners.

Question 38

Which regulatory agency is involved in regulating the disposal of hazardous waste after it leaves the dental office?

A) EPA
B) OSHA
C) ADA
D) State Dental Practice Act

Question 39

The creation of an environment free of pathogens is ___________.

A) aseptic technique
B) sterilization
C) disinfection
D) asepsis

Question 40

The glove of choice for working chairside is the _______ glove.

A) utility
B) latex
C) over
D) surgical

Question 41

The only way to verify the time requirement for a particular product is by ___________.

A) calling the manufacturer
B) asking the dentist
C) reading the label
D) all of the above

Question 42

Utility gloves are used in a dental procedure ___________.

A) to handle instruments.
B) to remove hot items from the sterilizer
C) to clean the operatory
D) when placed over latex gloves to retrieve something inside a drawer

Question 43

Which disinfectant can stain light-colored vinyl or plastics?

A) Chlorine dioxide
B) Sodium hypochlorite
C) Iodophors
D) None of the above

Question 44

Which is true of isopropyl alcohol?

A) It is not used as a disinfectant agent in a dental office.
B) It does a fine job of disinfecting handpieces.
C) It requires special ventilation in the room during use.
D) None of the above

Question 45

It is easier to _______ sterilization.

A) achieve
B) maintain

Question 46

Sodium hypochlorite is:
1) nonirritating to eyes and skin
2) irritating to eyes and skin
3) corrosive to metals
4) stable and has a long shelf life
5) unstable and must be mixed daily

A) None of the above
B) 1, 2, 3, 4, 5
C) 1, 3, 4
D) 2, 3, 5

Question 47

Some products require as few as _______ to disinfect.

A) 10 minutes
B) 30 minutes
C) 5 hours
D) 10 hours

Question 48

The preferred sterilization method for instruments with surgical cutting edges is ___________.

A) immersion sterilization
B) steam under pressure
C) hot bead
D) dry heat

Question 49

Some products require ________ of submersion to sterilize.

A) 10 minutes
B) 30 minutes
C) 5 hours
D) 10 hours

Question 50

The standards for wearing a mask include ___________.

A) replacing it when it becomes moist
B) never letting the mask dangle from one ear
C) placing a new mask for each patient
D) all of the above

Question 51

The disinfection level that destroys most, but not all, bacterial spores is ________ level.

A) high
B) intermediate
C) low
D) none of the above

Question 52

After instruments have been removed from the ultrasonic cleaner, they ___________.

A) should be rinsed and dried
B) are disinfected
C) are sterilized
D) must be cleaned by hand scrubbing

Question 53

An ultrasonic cleaner is preferred to hand scrubbing because it ___________.

A) uses sound waves to reach all areas of the instruments
B) uses a cavitation process
C) is safer for the auxiliary
D) all of the above

Question 54

Protective clothing worn during dental treatment includes ___________.

A) short-sleeve gowns for comfort during the summer months
B) high-neck and cuffed-wrist area
C) V-neck and cuffed-wrist area
D) There are no specific requirements for clothing.

Question 55

The disinfection level that does not kill bacterial spores is ________ level.

A) high
B) intermediate
C) low
D) none of the above

Question 56

The physical removal of organic matter from surfaces or instruments is ___________.

A) disinfection
B) sterilization
C) cleaning
D) sanitizing

Question 57

The disinfection level that kills some viruses and fungi and most bacterial microorganisms is _______ level.

A) high
B) intermediate
C) low
D) none of the above

Question 58

If during an immersion disinfection procedure an additional instrument is added to the solution before the disinfection time is up, the ___________.

A) time must be started over for all instruments
B) first instruments can be removed according to the original time limit
C) both a and b
D) neither a nor b

Question 59

A mask is worn by dental team members to ___________.

A) protect the mucous membranes of the nose and mouth
B) keep from breathing on the patient
C) keep from having to smell the patient's bad breath
D) none of the above

Question 60

A disadvantage of an ethylene oxide sterilization system is ___________.

A) There are no disadvantages.
B) works in 1 hour
C) it requires ventilation
D) it fails to sterilize properly

Question 61

A liquid chemical sterilizer requires ______________ to sterilize.

A) room temperature for 10 hours
B) room temperature for 10 minutes
C) elevated temperature for 1 hour
D) elevated temperature for 10 hours

Question 62

An autoclave sterilizes by using ___________.

A) chemical vapors
B) steam under pressure
C) dry heat
D) liquid chemicals

Question 63

All the following statements are true EXCEPT:

A) Disposable items can be disinfected and reused.
B) Disposable items are ideal for infection control.
C) Disposable items may be more expensive overall for the dentist.
D) Disposable items are intended for single use only.

Question 64

If the dental assistant has not had the hepatitis B series of vaccine, the employer is responsible for _____________.

A) immunization information
B) information regarding the availability of the vaccine during initial training
C) paying for the vaccine series
D) all of the above

Question 65

The microbe, found in dental unit water lines, represents this slime layer that allows bacteria, fungi, and viruses to multiply.

A) Iodophor
B) Chlorine dioxide
C) Peroxide
D) Biofilm

Question 66

The most accurate way to ensure that sterilization has occurred is to use _____________.

A) a process indicator
B) a dosage indicator
C) biological indicators
D) all of the above

Question 67

Name the organization that is composed of dental health care workers and that helps dental offices correct infection control.

A) OPIM
B) EPA
C) OSAP
D) FDA

Question 68

Running the water lines in the unit for ________ flushes out the system.

A) 5 seconds
B) 10 seconds
C) 20 seconds
D) 30 minutes

Question 69

The term that indicates that most individuals infected with HBV or HIV have no symptoms is _____________.

A) asepsis
B) antiseptic
C) SOP
D) asymptomatic

Question 70

The most effective way to reduce the amount of aerosols coming from the high-speed handpiece from being sprayed into the air is to _____________.

A) turn off the water to the handpiece
B) place the rubber dam on the patient
C) use the saliva ejector
D) use the HVE

Question 71

Failure of complete sterilization in an autoclave could result from _____________.

A) overloading the chamber
B) improper wrapping of instruments
C) improper setting of time and temperature
D) all of the above

Question 72

The autoclave requires which type of water to function properly?

A) Sterile
B) Saline
C) Tap
D) Distilled

Question 73

If during the operation of the autoclave a hissing sound comes from the unit, what is the cause?

A) The wrong solution was placed in the chamber.
B) The wrong sterilization time for operation was selected.
C) The door was shut improperly.
D) The gasket is displaced or torn.

Question 74

The best way to store sterilized instruments is to store them in _____________.

A) a sterile cabinet
B) the package in which they were sterilized
C) in sterile racks on the counter
D) none of the above

Question 75

A dry-heat sterilizer requires ____________ to sterilize.

A) 150 degrees for 2 hours
B) 250 degrees for 2 hours
C) 340 degrees for 1 hour
D) 270 degrees for 30 minutes

Question 76

Sterilizing plastics requires special consideration. Which of the following is NOT recommended for plastic?

A) Liquid chemical
B) Ethylene oxide
C) Dry heat
D) Chemical vapor

Question 77

The heated ethylene oxide sterilization method requires ______________ to sterilize.

A) 150 degrees for 10 hours
B) 150 degrees for 2 to 3 hours
C) 250 degrees for 1 hour
D) 120 degrees for 2 to 3 hours

Question 78

The autoclave takes _________________ to sterilize.

A) 30 minutes at 350 degrees at 20 psi
B) 15 minutes at 350 degrees at 15 psi
C) 15 minutes at 250 degrees at 15 psi
D) 60 minutes at 250 degrees at 15 psi

Question 79

With which solution may patients be asked to rinse their mouths to reduce microorganisms?

A) Peroxide
B) Sodium hypochorite
C) Chlorhexidine gluconate
D) Saline

Question 80

Which method indicates that packages in a sterilizer have been exposed to heat?

A) The use of a process indicator
B) The use of biological indicators
C) Both a and b
D) Neither a nor b