Deck 7: Surface Disinfection and Treatment Room Preparation

Question 1

Bacteria attached to, and accumulating on, the inside walls of water lines are called ______________.

Answer 1

biofilm

Question 2

Which entity registers and regulates disinfectants and chemical sterilants?

A) Occupational Safety and Health Administration (OSHA)
B) Environmental Protection Agency (EPA)
C) Centers for Disease Control and Prevention (CDC)
D) National Institutes of Health (NIH)

Answer 2

Environmental Protection Agency (EPA)

Question 3

Which surface barrier is LEAST effective?

A) Plastic bag
B) Aluminum foil
C) Sticky tape
D) Paper liner

Answer 3

Paper liner

Question 4

Laboratory case pans should be cleaned and disinfected:

A) monthly
B) as often as possible
C) when chemically corroded or discolored
D) before they are used for another case

Question 5

An impression should be disinfected with an _____________-level hospital disinfectant.

Question 6

Surfaces in the radiology area are considered noncritical. The surfaces the operator touches while producing radiographs must be covered with a barrier or cleaned and disinfected with a low- to intermediate-level disinfectant.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true; the second is false.
D) The first statement is false; the second is true.

Question 7

_____________ instruments are items used to penetrate soft tissue or bone.

Question 8

Iodophors:

A) can be used to disinfect impressions
B) are not used as disinfectants in dentistry
C) must be mixed with soft or distilled water
D) are effective immediately on application

Question 9

Glutaraldehyde is classified as a _____________-level disinfectant.

Question 10

Which combination of PPE is required to preclean a treatment room?

A) Utility gloves and mask
B) Mask and protective eyewear
C) Protective clothing, utility gloves, protective eyewear
D) Protective clothing, utility gloves, protective eyewear, mask

Question 11

Which are recommended to disinfect a cast?

A) Iodophors
B) Complex phenols
C) Phenol-alcohols
D) Quaternary ammonium compounds

Question 12

______________ is intended to kill disease-producing microorganisms that remain on the surface after precleaning.

Question 13

______________ means to clean before disinfecting.

Question 14

If a surface cannot be easily and thoroughly cleaned and disinfected, it should have ______________ protection.

Question 15

Which destroys all forms of microbial life, including bacterial spores?

A) Detergent
B) Disinfectant
C) Sterilant
D) Antiseptic

Question 16

The Bloodborne Pathogens Standard is regulated by _____________. (Answer with the full name of the organization, not the acronym.)

Question 17

Critical items must be:

A) heat sterilized
B) immersion sterilized
C) disposable
D) treated with a high-level disinfectant

Question 18

Surface barriers ________ contamination on a surface so it will not have to be cleaned and disinfected between patients.

Question 19

______________ water lines for several minutes at the beginning of the day and longer after weekends.

Question 20

____________ instruments pose the least risk of transmission of infection.

Question 21

You must discard a surface barrier as a hazardous waste product.

Question 22

Match each disinfectant with its classification.

Synthetic phenol compounds

A)High-level disinfectant
B)Intermediate-level disinfectant

Question 23

Match each disinfectant with its classification.

Iodophors

A)High-level disinfectant
B)Intermediate-level disinfectant

Question 24

After the impression has been removed from a patient's mouth, it is contaminated with saliva and, possibly, blood.

Question 25

If a barrier slips out of position, the underlying surface will become contaminated.

Question 26

Match each disinfectant with its classification.

Glutaraldehyde

A)High-level disinfectant
B)Intermediate-level disinfectant

Question 27

Match each item with its classification.

Scalpel

A)Critical
B)Semicritical
C)Noncritical

Question 28

Impression material can be disinfected with any type of disinfectant.

Question 29

Match each item with its classification.

External dental x-ray head

A)Critical
B)Semicritical
C)Noncritical

Question 30

Match each item with its classification.

Mouth mirror

A)Critical
B)Semicritical
C)Noncritical

Question 31

Under the new Centers for Disease Control and Prevention (CDC) guidelines, household bleach alone is recommended as a disinfectant.

Question 32

Match each disinfectant with its classification.

Ortho-phthalaldehyde

A)High-level disinfectant
B)Intermediate-level disinfectant

Question 33

Match each disinfectant with its classification.

Chlorine dioxide

A)High-level disinfectant
B)Intermediate-level disinfectant