1What are the main types of laboratory hazards?
Biological, electrical, sharps, fire or explosive, chemical, physical, and radioactive
2What hazard involves microorganisms and infectious agents?
Biological hazard
3What hazard involves needles and broken glass?
Sharps hazard
4What hazard involves corrosive or toxic substances?
Chemical hazard
5What hazard involves unstable atoms releasing radiation?
Radioactive hazard
6Special waste from healthcare facilities that may transmit infectious diseases
Medical waste
7What are examples of medical waste?
Animal waste, bulk blood and blood products, microbiologic waste, and pathologic waste
8How should patients be considered in laboratory safety?
As possible carriers of blood-borne pathogens
9How should body fluids be treated?
As potentially infectious
10How should biological specimens be treated?
As potentially infectious
11What practice is essential to prevent infection transmission?
Handwashing
12What personal protective equipment may be required in the laboratory?
Gloves, mask, eye protection, face shield, and gown
13What does the biohazard symbol indicate?
Presence of biological hazards
14What biological waste is exempt from biohazard disposal?
Urine
15How should urine be disposed of?
Poured into a laboratory sink with running water
16How should sinks be disinfected after urine disposal?
Using 1:5 or 1:10 dilution of sodium hypochlorite daily
17Where should sharps be disposed of?
In puncture-resistant, leak-proof containers with biohazard symbol
18What should be done in case of skin contact with chemicals?
Flush with water for at least 15 minutes and seek medical attention
19Should chemicals be neutralized after skin exposure?
No, DO NOT NEUTRALIZE
20How should acid be mixed with water?
Add acid to water
21Where should reagents be prepared?
Under a fume hood
22Is mouth pipetting allowed?
No, it is strictly prohibited
23What is the purpose of a Chemical Hygiene Plan?
To ensure safe chemical handling practices
24How should hazardous chemicals be identified?
By proper labeling
25Hazardous Materials Classification
Health Hazard
Fire Hazard
Reactivity
Specific Hazard
26Health Hazard - 0
Normal Material
27Health Hazard - 4
Deadly
28Health Hazard - 1
Slightly Hazardous
29Health Hazard - 2
Hazardous
30Health Hazardous - 3
Extreme Danger
31Fire Hazard - 4
Below 73° F
32Fire Hazard - 3
Below 100° F
33Fire Hazard - 2
Below 200° F
34Fire Hazard - 1
Above 200° F
35Fire Hazard - 0
Will not Burn
37Reactivity - 1
Unstable if Heated
38Reactivity - 2
Violent Chemical Change
39Reactivity - 3
Shock and Heat may deteriorate
40Reactivity - 4
May Deteriorate
41Enumerate Specific Hazards in order
Oxidizer
Acid
Alkali
Corrosive
Use NO water
Radiation
42What hazards may be indicated on chemical labels?
Poisonous, corrosive, flammable, explosive, teratogenic, carcinogenic
43What does corrosive mean?
A substance that wears away materials
44What does teratogenic mean?
Causing developmental malformations
45What does carcinogenic mean?
Having the potential to cause cancer
46What information is found in Material Safety Data Sheets?
Hazards, safe handling, disposal, exposure limits, and emergency procedures
47What are radioisotopes?
Unstable elements that release radiation
48What factors reduce radiation exposure?
Time, distance, and shielding
49How should electrical equipment be installed?
With grounded three-pronged plugs
50What does RACE stand for in fire emergencies?
Rescue, Activate alarm, Close doors, Extinguish fire
51What type of fire extinguisher is commonly used in laboratories?
Multipurpose ABC fire extinguisher
52What does PASS stand for when using a fire extinguisher?
Pull, Aim, Squeeze, Sweep
53What Class of fire involves wood, paper, clothes?
Class A
54What class of fire involves flammable organic chemicals?
Class B
55What class of fire involves electricals?
Class C
56What class of fire invloves combustible metals?
Class D
57What class of fire involves grease, oil, and fats?
Class K
58Extinguisher for Class A
Water
59Extinguisher for Class B
Dry chemicals, CO2, foam, or halon
60Extinguisher for Class C
Dry chemicals, CO2, or halon
61Extinguisher for Class D
Sand or Dry powder
62Also an extinguisher for Class ABC
Dry Chemicals
63Extinguisher for class K
Liquid designed to prevent splashing & cool fire
64What is a common cause of physical injury in the lab?
Wet floors or lifting heavy objects
65What injuries can result from physical hazards?
Falls, sprains, and strains
66What footwear is required in the laboratory?
Closed-toed shoes
67What general rule should always be remembered in the laboratory?
Safety first