Deck 23: Chemical and Waste Management

Question 1

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.

Answer 1

be labeled with the biohazard symbol.

Question 2

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

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

Answer 2

Regulated

Question 3

_____ is considered regulated waste and requires special disposal.

A)Human tissue
B)Food
C)Saliva-soaked gauze
D)A used patient bib

Answer 3

Human tissue

Question 4

Which government agency enforces the disposal of regulated waste?

A)OSHA
B)The EPA
C)The CDC
D)The FDA

Question 5

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 6

Any chemical that can cause either a physical or health hazard is:

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

Question 7

Hazard Communication Program training is required _____ for all continuing employees.

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

Question 8

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.

Question 9

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 employing fewer than 15 employees.
D)describes employer, but not staff, training.

Question 10

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.

Question 11

Wastes are classified as hazardous if they are:

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

Question 12

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 13

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 14

Eyewash units:

A)must be wall mounted.
B)irrigate the eyes with a strong, narrow flow of water, to bathe away contaminants.
C)may 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 15

Used radiographic fixer:

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

Question 16

Material Safety Data Sheets 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 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

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 19

Dermatitis may occur following chemical exposure by:

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

Question 20

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 21

Which of the following is not considered to be a hazardous waste?

A)Human tissue
B)Scrap amalgam
C)Lead foil
D)Radiographic solution

Question 22

What section of the MSDS would indicate special handling,storage precautions,and any protective measures of a product?

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

Inhalation of gases,vapors,or dusts is one of the primary methods of chemical exposure.It can cause direct damage to the lungs,but also can be absorbed and then sent through the blood to other organs.Which of the following organs can be affected?

A)Heart, brain, and thyroid gland
B)Kidneys, brain, and liver
C)Brain, heart, and stomach
D)Heart, brain, and bladder

Question 24

Good ventilation is necessary when dealing with any type of chemical.Which area of the dental office would not require special ventilation?

A)Laboratory
B)Sterilization areas
C)Darkrooms
D)Reception area

Question 25

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

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

Question 26

In what section of an MSDS would the information include how the product will look and smell as well as some of its physical characteristics?

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

Question 27

Which of the following is not required information on an MSDS?

A)Cost of product
B)Health hazard information
C)Product information
D)Physical hazard data

Question 28

Acute toxicity can cause which of the following symptoms?

A)Headache
B)Dizziness
C)Unconsciousness
D)All of the above

Question 29

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

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

Question 30

Manufacturers of eyewash units recommend ________ to reduce microbial content in the waterline.

A)6-minute flushing weekly.
B)3-minute flushing weekly.
C)3-minute flushing monthly.
D)2-minute flushing daily.

Question 31

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 32

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 33

Which of the following is false about handling extracted teeth?

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

Question 34

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

A)leakproof.
B)puncture-resistant.
C)not be labeled with a biohazard symbol.
D)closable.

Question 35

Radiographic fixer is considered a hazardous waste because it has a high _____ content.

A)silver
B)mercury
C)lead
D)acid

Question 36

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 37

The chemical training program for employees must provide which of the following?

A)Use of hazardous chemicals
B)Required PPE
C)Safe handling and disposal methods
D)All of the above

Question 38

Which of the following defines toxicity resulting from high levels of exposure over a short period of time?

A)Chronic chemical toxicity
B)Acute chemical toxicity
C)Chemical exposure toxicity
D)None of the above

Question 39

Which of the following products does not require listing on the chemical inventory?

A)Dental film
B)Phosphoric acid etch
C)Amalgam
D)Composite

Question 40

Which of the following is not considered a regulated waste?

A)Blood-soaked gauze
B)Human tissue
C)Saliva-soaked gauze
D)Scalpel blade

Question 41

Some chemicals can be absorbed through the skin.Repeated contact with a chemical can cause a skin condition called:

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

Question 42

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 43

What chemicals would be considered toxic?

A)Arsenic, mercury, lead
B)Barium, chromium, certain pesticides
C)Gold, titanium, stainless steel
D)Both a and b

Question 44

Which of the following would not be included in the Hazard Communication Program?

A)MSDSs for every chemical
B)Inventory of hazardous chemicals
C)Supply list
D)Employee training