Deck 23: Chemical and Waste Management

Question 1

Dermatitis can occur following chemical exposure by:

A)inhalation.
B)absorption through the lungs.
C)skin contact.
D)ingestion.

Answer 1

skin contact.

Question 2

If a small mercury spill occurs in the dental office,the assistant should:

A)call the HAZ-MAT team.
B)call the EPA.
C)get the mercury spill kit, a mask, and utility gloves.
D)make a report and tell the dentist.

Answer 2

get the mercury spill kit, a mask, and utility gloves.

Question 3

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

A)they are likely to tear.
B)the latex in the gloves degrades when exposed to chemical disinfectants.
C)they have many pinholes that are responsible for leaks.
D)they will chemically react and create toxic fumes.

Answer 3

the latex in the gloves degrades when exposed to chemical disinfectants.

Question 4

Used radiographic fixer:

A)should be flushed down the toilet.
B)requires offsite treatment.
C)can be managed on site with the installation of a silver recovery system.
D)is nonhazardous; however, used radiographic developer is hazardous.

Question 5

An example of regulated waste that requires special disposal is:

A)human tissue.
B)food.
C)A saliva-soaked gauze.
D)a used patient bib.

Question 6

Which of the following is the classification for waste that is infectious and requires special handling,neutralization,and disposal?

A)Contaminated waste
B)Hazardous waste
C)Regulated waste
D)Nonregulated waste

Question 7

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

A)chronic chemical toxicity.
B)acute chemical toxicity.
C)chemical resistance.
D)mild exposure.

Question 8

The Hazard Communication Standard requires employers to inform their employees about the _____ of chemicals that they use in the workplace.

A)identity and hazards
B)manufacturing process
C)chemical structure
D)natural and synthetic origins

Question 9

A chemical that can cause a physical or health hazard is:

A)a hazardous chemical.
B)corrosive.
C)toxic.
D)poisonous if swallowed.

Question 10

Lead foil from the radiographic film should be:

A)disposed of in the regular trash.
B)recycled as scrap metal.
C)recycled through Eastman Kodak.
D)either b or c

Question 11

Material Safety Data Sheets (MSDSs)contain health and safety information about:

A)household chemicals such as bleach used in the office, but not specialty dental items such as cavity varnish and dental cements.
B)every chemical in the office.
C)equipment in the office such as dental chairs, delivery units, and electrical equipment.
D)single-use items such as paper bibs, disposable cups, and prophy cups.

Question 12

Wastes are classified as hazardous if they are:

A)ignitable.
B)ingestible.
C)ultrasonic.
D)plastic.

Question 13

Eyewash units:

A)must be wall mounted.
B)irrigate the eyes with a strong, narrow flow of water, to bathe away contaminants.
C)must be flushed yearly to reduce microbial content in the waterline, according to some manufacturers.
D)must be installed in every workplace where chemicals are used, according to OSHA regulations.

Question 14

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

A)an official label obtained from the manufacturer of the chemical product.
B)an official label obtained from the EPA.
C)any label, providing the labeling system is easy to use and all employees are properly trained to understand and read the label.
D)a reduced size photocopy of the label from the original container.

Question 15

For continuing employees,Hazard Communication Program training is required:

A)only at the time of initial hiring.
B)once a month.
C)twice a year.
D)once a year.

Question 16

The written program portion of the Hazard Communication Program:

A)must identify all the employers in the office who are exposed to hazardous chemicals.
B)describes how to respond to chemical emergencies.
C)is not a requirement for an office with fewer than 15 employees.
D)describes employer, but not staff, training.

Question 17

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

A)Headache
B)Dizziness
C)Unconsciousness
D)Leukemia

Question 18

The government agency responsible for enforcing rules regarding the disposal of regulated waste is:

A)OSHA.
B)the EPA.
C)the CDC.
D)the FDA.

Question 19

Scrap dental amalgam should be collected and stored in:

A)a designated, dry, airtight container.
B)an airtight container under photographer fixer.
C)an airtight container under water.
D)either b or c

Question 20

All waste containers that hold potentially infectious materials must:

A)have a red bag.
B)be labeled with the biohazard symbol.
C)have special disposal.
D)be labeled as infectious waste.

Question 21

OSHA requires a sharps container to be all of the following except:

A)leak-proof.
B)puncture-resistant.
C)labeled with the dental practice name.
D)closable.

Question 22

The section of the MSDS providing information on the special handling,storage precautions,and any protective measures of a product is:

A)Section V-Health Hazard Information.
B)Section VIII-Special Protection Information.
C)Section III-Physical Hazard Data.
D)Section IX-Special Precautions.

Question 23

Hazard Communication Program employee training is required:

A)once a month.
B)when a new employee is hired.
C)once a year.
D)both b and c

Question 24

According to OSHA,how often do eyewash stations need to be inspected to ensure proper function?

A)Daily
B)Weekly
C)Monthly
D)Not required by OSHA

Question 25

All of the following information is required on an MSDS except:

A)cost of product.
B)health hazard information.
C)product information.
D)physical hazard data.

Question 26

Topics in a chemical training program for employees must include:

A)the use of hazardous chemicals.
B)required PPE.
C)the safe handling and disposal methods of chemicals.
D)all of the above.

Question 27

All of the following are considered a regulated waste except:

A)blood-soaked gauze.
B)human tissue.
C)saliva-soaked gauze.
D)scalpel blade.

Question 28

The section of an MSDS that describes how the product will look and smell as well as other physical characteristics is:

A)Section V-Health hazard data.
B)Section VI-Reactivity data.
C)Section I-Product information.
D)Section III-Physical hazard data.

Question 29

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

A)dental film.
B)phosphoric acid etch.
C)amalgam.
D)composite.

Question 30

The written program of the Hazard Communication Program must include all of the following information except:

A)the names of all employees who are exposed to hazardous chemicals.
B)the identity the individual responsible for the program.
C)employee phone numbers.
D)a description of staff training.

Question 31

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

A)headache.
B)dizziness.
C)unconsciousness.
D)all of the above.

Question 32

Toxicity resulting from high levels of exposure over a short period is defined as:

A)chronic chemical toxicity.
B)acute chemical toxicity.
C)chemical exposure toxicity.
D)none of the above.

Question 33

When using chemicals,dental assistants must wear:

A)utility gloves, mask, and eye protection.
B)latex gloves, eye protection, and mask.
C)overgloves and eye protection only.
D)mask and eye protection only.

Question 34

All of the following are considered hazardous waste except:

A)human tissue.
B)scrap amalgam.
C)lead foil.
D)radiographic processing solution.

Question 35

The protocol recommended by manufacturers of eyewash units to reduce microbial content in the waterline is a _____-minute flushing _____.

A)6; weekly
B)3; weekly
C)3; monthly
D)2; daily

Question 36

In addition to chemical exposure directly damaging the lungs,the organs that can also be affected are:

A)heart, brain, and thyroid gland.
B)kidneys, brain, and liver.
C)brain, heart, and stomach.
D)heart, brain, and bladder.

Question 37

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

A)silver content.
B)mercury index.
C)lead level.
D)acid reading.

Question 38

All of the following areas in a dental environment require good ventilation except the:

A)laboratory.
B)sterilization area.
C)darkroom.
D)reception area.

Question 39

In the National Fire Protection Association (NFPA)labeling system the color yellow indicates:

A)health hazard.
B)reactivity.
C)flammability.
D)special health hazards.

Question 40

All of the following are true about handling extracted teeth except extracted teeth:

A)are considered potentially infectious.
B)containing amalgam restorations should be heat sterilized to prevent the release of mercury vapors.
C)are regulated waste.
D)can be heat sterilized for educational purposes.

Question 41

Products that have outlived their expiration date should be:

A)used first.
B)used as needed.
C)kept as back-up supplies.
D)disposed of immediately.

Question 42

All of the following chemicals are considered toxic except:

A)arsenic, mercury, lead.
B)barium, chromium, certain pesticides.
C)gold, titanium, stainless steel.
D)both b and c are correct.

Question 43

Repeated contact with a chemical can cause a skin condition called:

A)acne.
B)dermatitis.
C)erythema.
D)inflation.

Question 44

All of the following are included in the Hazard Communication Program except:

A)MSDSs for every chemical.
B)an inventory of hazardous chemicals.
C)a supply list.
D)employee training documentation.