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Dental Assisting > CHAPTER 23- CHEMICAL AND WASTE MANAGEMENT > Flashcards

CHAPTER 23- CHEMICAL AND WASTE MANAGEMENT Flashcards

1
Q

Hazardous chemical

A

any chemical that can cause physical hazard or a health hazard

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2
Q

how do you know if a chemical is hazardous

A

it ignites
can react or explode when mixed with other substances
corrosive
is toxic

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3
Q

three primary methods of chemical exposure

A

inhalation
skin contact
ingestion

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4
Q

What is acute chemical toxicity?

A

high levels of exposure over a short period of time

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5
Q

what is chronic chemical toxicity?

A

low levels of expore over a long period of time

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6
Q

MSDS/SDS

A

Material safety data sheet

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7
Q

what is the MSDS/SDS

A

The MSDS is a sheet of information with information regarding that specific chemical

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8
Q

What kind of hand protection shoud you use when handling chemicals?

A

utiity gloves.

gloves made from chemical resistant material

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9
Q

what kind of gloves should you NOT use when handling chemicals?

A

examination gloves. doesnt provide adequate protection against chemicals

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10
Q

what kind of PPE should you wear when handling chemicals

A

eye protection
utility gloves
protective clothing

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11
Q

Amalgam

A

silver and mercury tooth filling

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12
Q

what should you do if mercury spills?

A

you MUST always use a spill kit to dispose of the spilled mercury and call someone to pick it up

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13
Q

what does the mercury spill kit include?

A

mercury-absorbing powder
mercury-absorbing sponge
disposable bag

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14
Q

hazardous waste

A

a chemical with certain properties that could pose a danger to human health and the environment

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15
Q

two types of waste in the dental office

A

regulated waste

unregulated waste

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16
Q

difference between regulated waste and non regulated waste

A

regulated waste : cannot be disposed in regular waste/garbage. must be disposed in a special waste container to be picked up

unregulated waste : can be disposed in regular garbage/waste.

17
Q

is scrap amalgam regulated or non regulated waste. why?

A

it is regulated waste because it contains mercury which is harmful.

18
Q

what kind of waste is lead?

A

regulated waste

19
Q

what does the lead in the xray film look like. Is this regulated or non regulated waste?

A

looks like aluminum foil and this is regulated waste

20
Q

what is the Hazard communication standard (HCS)

A

“employee right to know” law.

employers must inform employees about hazards of chemicals and exposure in the workplace

21
Q

who regulates HCS

A

OSHA

22
Q

WHMIS

A

workplace hazardous material information system

23
Q

Chemical inventory

A

list of all products used in the office that contains chemicals

24
Q

what should chemicals not in their orginal container have?

A

label to indicate that this is a chemical

25
Q

what is NFPA

A

National fire protection association

26
Q

what is the NFPA system?

A

numeric rating from 0-4 and colour coding of chemicals and its hazards

27
Q

what does blue indicate in the NFPA system

A

health hazard

28
Q

what does red indicate in the NFPA system?

A

flammability

29
Q

what does yellow indicate in the NFPA system?

A

reactivity

30
Q

what does white indicate in the NFPA system?

A

special hazard

31
Q

dental materials that may be regulated

A

mercury and dental amalgam
lead foil and shields (xray)
xray fixer solution
xray developer solution

32
Q

what does non regulated waste include?

A

contaminated waste materials
saliva soaked gauze
used patient bibs
surface barriers

33
Q

what type of waste is extracted teeth?

A

unregulated waste in canada

regulated waste in the usa

34
Q

how should you not sterilize extracted teeth with amalgam

A

heat sterilization because the heat may create toxic mercury vapours

35
Q

how should you sterilize extracted teeth with amalgam

A

cold soak

36
Q

where should scrap dental amalgam be stored?

A

in a dry airtight container

37
Q

where can lead foil from xray be recycled?

A

licensed recovery facility

38
Q

can you pour down solutions with glutaraldehyde of more than 2% down the drain?

A

no. you cannot

39
Q

contaminated waste

A

waste that is contaminated from a potentially infectious body fluid of a patient

Dental Assisting (52 decks)

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