1.1-HAZARD CONTROL

Question 2

What is a chemical that is an irritant to the respiratory system and requires adding acid to water?

Answer 2

Acetic acid

Question 3

What is a highly flammable chemical that can be narcotic in high concentrations?

Answer 3

Acetone

Question 4

What are low-toxicity chemicals that are combustible or flammable?

Answer 4

Aliphatic hydrocarbon clearing agents

Question 5

What is a severe irritant to eyes

Answer 5

skin

Question 6

What is an irritant chemical requiring nitrile gloves?

Answer 6

Ethanol

Question 7

What is a severe eye/skin irritant toxic by ingestion/inhalation and corrosive to metals?

Answer 7

Formaldehyde

Question 8

What are the hazards of acetic acid?

Answer 8

Irritant to respiratory system avoid skin eye respiratory contact

Question 9

How should acetic acid be handled?

Answer 9

Use chemical fume hood gloves goggles plastic apron always add acid to water

Question 10

What are the hazards of acetone?

Answer 10

Highly flammable narcotic in high concentrations dizziness headache irritation

Question 11

What protective equipment is needed for acetone?

Answer 11

Neoprene gloves

Question 12

What are the hazards of aliphatic hydrocarbon clearing agents?

Answer 12

Low toxicity combustible or flammable

Question 13

What protective equipment is needed for aliphatic hydrocarbon clearing agents?

Answer 13

Neoprene or nitrile gloves

Question 14

What are the hazards of ammonium hydroxide?

Answer 14

Severe irritant to eyes skin respiratory tract generates heat/toxic vapor when mixed with formaldehyde

Question 15

How should ammonium hydroxide spills be handled?

Answer 15

Spills exceeding 500ml may warrant evacuation

Question 16

What are the hazards of ethanol?

Answer 16

Irritant

Question 17

What protective equipment is needed for ethanol?

Answer 17

Nitrile gloves

Question 18

What are the hazards of formaldehyde?

Answer 18

Severe eye/skin irritant toxic by ingestion/inhalation corrosive to metals

Question 19

What protective equipment is needed for formaldehyde?

Answer 19

Nitrile gloves apron goggles respirator

Question 20

How should formaldehyde waste be disposed?

Answer 20

Drain disposal of limited quantities

Question 21

What is corrosive to skin and metals and forms explosive mixtures with hydrogen peroxide?

Answer 21

Nitric acid

Question 22

What is explosive when dry or complexed with metal salts?

Answer 22

Picric acid

Question 23

What is a skin and eye irritant that produces neurotoxic effects with repeated exposure?

Answer 23

Xylene

Question 24

What are biological hazards?

Answer 24

Infectious agents or items contaminated with them causing diseases in humans

Question 25

What are the three potential routes of exposure to biological hazards?

Answer 25

Inhalation of aerosols contact with non-intact skin contact with mucous membranes

Question 26

What does universal precaution mean?

Answer 26

Treating all specimens as potentially infectious

Question 27

Which specimens carry the highest risk during grossing?

Answer 27

Fresh tissue and body fluids

Question 28

How does fixation reduce risks in specimens?

Answer 28

Formaldehyde reduces viral and bacterial infection risk

Question 29

What is cryotomy?

Answer 29

Section cutting in fresh frozen sections using a cryostat

Question 30

How should biohazardous waste be disposed of?

Answer 30

Segregate incinerate on-site or haul

Question 31

What are physical hazards in the lab?

Answer 31

Slips falls ergonomic electrical mechanical acoustic thermal hazards

Question 32

What causes ergonomic hazards?

Answer 32

Awkward postures contact stress duration repetition static postures

Question 33

How can risks from equipment be minimized?

Answer 33

Proper installation care personnel training preventive maintenance

Question 34

What causes electrical shocks in labs?

Answer 34

Improperly grounded devices improper use of extension cords

Question 35

What safety measure should wet location outlets have?

Answer 35

Ground-fault circuit interrupters (GFCIs)

Question 36

What should you do if someone is electrocuted?

Answer 36

Do not touch them

Question 37

Why must refrigerators not store flammable chemicals like ether?

Answer 37

Risk of igniting flammable vapors

Question 38

What are mechanical dangers in the lab?

Answer 38

Burns from hot surfaces open flames broken glass microtome blades

Question 39

What type of hazards include infectious agents or items contaminated with them causing diseases in humans?

Answer 39

Biological hazards

Question 40

What type of hazards include corrosive chemicals like hydrochloric acid and bromine?

Answer 40

Chemical hazards

Question 41

What type of hazards include flammable materials such as methanol and acetone?

Answer 41

Chemical hazards

Question 42

What type of hazards involve slips

Answer 42

falls

Question 43

What type of hazards arise from improperly grounded devices or faulty electrical tools?

Answer 43

Electrical hazards

Question 44

What type of hazards involve cuts from glass tubing or sharp objects?

Answer 44

Mechanical hazards

Question 45

What type of hazards include inhalation of toxic fumes from solvents?

Answer 45

Chemical hazards

Question 46

What type of hazards involve allergens from laboratory animals?

Answer 46

Biological hazards