UNIT 4: Environmental Infection Controls, Waterlines, Biofilm, and Water

Question 1

The color blue on a warning label indicates _____________.

Answer 1

a health hazard

Question 2

Wastes are classified as hazardous if they are

Answer 2

ignitable

Question 3

Engineering and work practice controls are the physical and mechanical devices that employers provide to safeguard and protect employees at work.

Answer 3

True

Question 4

Assembled SDSs should be _____________.

Answer 4

alphabetized

indexed

available to all employees

Question 5

The section of the SDS listing precautions for storage incompatibilities is

Answer 5

Section 7—Handling and storage.

Question 6

Scrap dental amalgam should be collected and stored in

Answer 6

a designated, dry, airtight container.

Question 7

Employers must require employees to use personal protective equipment (PPE) while at the work site.

Answer 7

True

Question 8

Used radiographic fixer

Answer 8

can be managed on site with the installation of a silver recovery system.

Question 9

The dentist and staff should check with the equipment manufacturer to determine the recommended chemical product and maintenance protocol.

Answer 9

true

Question 10

Modern-day dental offices should always take into account

Answer 10

the use of proper water and flushing of waterlines.

minimization of aerosol and use of protective barriers.

Question 11

OPIM stands for _____________.

Answer 11

Other potentially infectious materials

Question 12

When using chemicals, dental assistants must wear

Answer 12

utility gloves, mask, and eye protection.

Question 13

Factors contributing to the formation of bacteria in DUWLs include all of the following except

Answer 13

well water.

Question 14

The product that does not need to be listed on the chemical inventory is

Answer 14

dental film

Question 15

What is the purpose of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS)?

Question 16

What is the purpose of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS)?

Answer 16

Uniformity in classifying and labeling of a chemical regardless of where it is manufactured or used.

Question 17

During routine dental procedures, biofilm and bacteria found in water from municipal lines can enter the oral cavity of a patient through

Answer 17

the handpiece.

the waterline.

Question 18

SDS stands for _____________.

Answer 18

Safety Data Sheet

Question 19

Topics in a chemical training program for employees must include

Answer 19

the use of hazardous chemicals.

required PPE.

the safe handling and disposal methods of chemicals

Question 20

Backflow from low-volume saliva ejectors can occur when a patient

Answer 20

closes his or her lips around the tip of a saliva ejector.

Question 21

Planktonic bacteria are

Answer 21

Free floating in water

Question 22

The type of water used during surgery where bone is exposed should be

Answer 22

only sterile water delivered in a sterile syringe.

Question 23

Which of the following is a form of toxicity that can be caused by chronic benzene exposure?

Answer 23

Leukemia

Question 24

Which of the following statements is true about dental unit waterlines?

Answer 24

Viruses cannot multiply in the DUWL.

Question 25

An example of a parenteral exposure is _____________.

Answer 25

needlestick from a used needle

Question 26

Reduction of exposure of the dental unit water for the dental team include all of the following:

Answer 26

* the HVE. * masks. * protective eyewear and/or face shields.

Question 27

The section of a SDS that describes proper methods of containment and cleanup is

Answer 27

Section 6—Accidental release measures.

Question 28

An example of regulated waste that requires special disposal is

Answer 28

human tissue

Question 29

The primary source of microorganisms in dental waterlines is

Answer 29

public water supply

Question 30

All of the following are considered a regulated waste:

Answer 30

* blood-soaked gauze. * human tissue. * scalpel blade.

Question 31

A bodily fluid that does not contain blood is not considered an OPIM.

Answer 31

false

Question 32

The symptom(s) of acute toxicity is (are)

Answer 32

* headache. * dizziness. * unconsciousness.

Question 33

The three primary methods of chemical exposure are through

Answer 33

inhalation, skin contact, and ingestion.

Question 34

What is the classification for waste that is infectious and requires special handling, neutralization, and disposal?

Answer 34

Regulated waste

Question 35

A victim who immediately feels the effects of a chemical spill, with symptoms of dizziness, headache, nausea, and vomiting, is experiencing

Answer 35

Acute chemical toxicity

Question 36

Biofilm can contain many types of bacteria,

Answer 36

fungi, algae, and protozoa.

Question 37

Advantages of using self-contained water reservoirs include

Answer 37

Giving the dental office control of the quality of water used

Question 38

The red triangle on a chemical label indicates the degree of the product’s flammability.

Answer 38

True

Question 39

Who is responsible for providing counseling, postexposure prophylaxis, and evaluation of reported illnesses?

Answer 39

The employer

Question 40

Latex gloves worn during patient care do not provide adequate protection when handling chemicals because

Answer 40

The latex in gloves degrades when exposed to chemical disinfectants.

Question 41

Acute exposure is

Answer 41

A high level of exposure over a short period of time

Question 42

When a chemical is transferred to a different container, the new container must be labeled with

Answer 42

any label, providing the labeling system is easy to use and all employees are properly trained to understand and read the label.

Question 43

What is true of Safety Data Sheets (SDS)?

Answer 43

The SDS should be organized in binders so that employees can locate a particular SDS.

Question 44

Products that are ____________ are considered hazardous.

Answer 44

* Toxic * Flammble * Reactive or explosive

Question 45

The type of plaque that develops inside DUWLs, consisting of bacterial cells and other microbes, is called

Answer 45

Biofilm

Question 46

Which method is not used to reduce biofilm in dental unit waterlines?

Answer 46

Use of sterile water

Question 47

Flushing the dental waterlines for several minutes at the beginning of the treatment day and for 20 to 30 seconds between patients will help to

Answer 47

reduce the microbial count.

Question 48

The number of waterborne bacteria in community water is kept below _____ colony forming units (CFUs) per milliliter.

Answer 48

500

Question 49

Failure to wash hands that are contaminated with chemicals before eating a sandwich is an example of

Answer 49

ingestion

Question 49

Radiographic fixer is considered a hazardous waste because it has a high

Answer 49

silver content