Laboratory safety

Question 1

What are the types of biological infectious agents?

Answer 1

Bacterial, viral, parasitic, fungal infections

Question 2

What are examples of sharps in a laboratory?

Answer 2

Needles, lancets, broken glass, applicator sticks

Question 3

What type of injury can sharps cause?

Answer 3

Cuts, punctures, bloodborne pathogen exposure

Question 4

What types of chemicals can pose hazards in a laboratory?

Answer 4

Preservatives, reagents, biocides, stains

Question 5

What are the potential health risks from chemical exposure in the lab?

Answer 5

Toxic, carcinogenic, and caustic effects

Question 6

What are examples of radioactive materials that can cause exposure hazards?

Answer 6

Radioisotopes/radiopharmaceuticals, equipment

Question 7

What health risk is associated with radioactive exposure?

Answer 7

Radiation exposure

Question 8

What electrical hazards are common in laboratory settings?

Answer 8

Ungrounded/wet equipment, frayed cords

Question 9

What are the potential consequences of electrical hazards?

Answer 9

Burns, shock

Question 10

What fire/explosive hazards might be present in a laboratory?

Answer 10

Bunsen burners, alcohol lamps, chemicals

Question 11

What injuries are associated with fire or explosive hazards?

Answer 11

Burns, dismemberment

Question 12

What physical hazards can occur in a laboratory?

Answer 12

Wet floors, heavy boxes, patients

Question 13

What are the potential injuries from physical hazards?

Answer 13

Strain/sprain, falls

Question 14

What is the color of biohazard warning labels, signs, and containers?

Answer 14

Fluorescent orange-red with contrasting lettering or symbols

Question 15

What are the components of the chain of infection?

Answer 15

Infectious agent, Reservoir, Portal of Exit, Means of transmission, Portal of entry, Susceptible host

Question 16

What agents are not associated with disease in healthy individuals?

Answer 16

None, open bench work

Question 17

What agents are associated with human diseases that are rarely serious, and for which preventive or therapeutic interventions are often available?

Answer 17

Open bench plus Class II BSC

Question 18

What agents are associated with serious or lethal disease, for which preventive or therapeutic interventions may be available?

Answer 18

Class II or III BSC and/or other primary barrier

Question 19

What are dangerous and exotic agents that pose a high risk of aerosol-transmitted infections and life-threatening disease for which effective treatments are limited?

Answer 19

Class III BSC or positive pressure suits in conjunction with Class II BSC

Question 20

What does Class I Biological Safety Cabinet do?

Answer 20

Sterilizes only the air to be exhausted; does not protect the work surface.

Question 21

What does Class II Biological Safety Cabinet do?

Answer 21

Most commonly used in microbiology; sterilizes air flowing over the infectious material as well as air to be exhausted.

Question 22

What does Class III Biological Safety Cabinet provide?

Answer 22

Completely enclosed with glove ports; provides the highest level of personnel protection for extremely hazardous organisms.

Question 23

What is the most important means of preventing the spread of infection?

Answer 23

Handwashing.

Question 24

What are the steps to properly wash hands?

Answer 24

Thoroughly clean between fingers and under fingernails for at least 30 seconds, washing/rinsing hands in a downward position.

Question 25

What is the proper order for donning Personal Protective Equipment (PPE)?

Answer 25

Gown → Mask or Respirator → Goggles or Face Shield → Gloves.

Question 26

What is the proper order for doffing Personal Protective Equipment (PPE)?

Answer 26

Gloves → Goggles or Face Shield → Gown → Mask or Respirator → Handwashing.

Question 27

What is the first aid for a chemical spill?

Answer 27

Flush the area with large amounts of water for at least 15 minutes.

Question 28

What is the definition of Elimination in the Hierarchy of Controls?

Answer 28

Physically remove the hazard.

Question 29

What is the definition of Substitution in the Hierarchy of Controls?

Answer 29

Replace the hazard.

Question 30

What is the definition of Engineering controls in the Hierarchy of Controls?

Answer 30

Isolate people from the hazard.

Question 31

What is the definition of Administrative controls in the Hierarchy of Controls?

Answer 31

Change the way people work.

Question 32

What is the definition of PPE in the Hierarchy of Controls?

Answer 32

Protect the worker with personal protective equipment.

Question 33

What is the purpose of a Fume Hood in a chemical lab?

Answer 33

Protects personnel against harmful vapors; used for materials that give off harmful vapors.

Question 34

What does a Fume Hood provide in terms of protection?

Answer 34

Personnel protection only.

Question 35

How should flammable liquids be stored?

Answer 35

Stored separately from flammable solids.

Question 36

How should perchloric acid be stored?

Answer 36

Stored separately from water-reactive substances.

Question 37

How should heat-reactive substances requiring refrigeration be stored?

Answer 37

Should not be stored in a common space.

Question 38

How should unstable substances (shock-sensitive explosives) be stored?

Answer 38

Should not be stored in a common space.

Question 39

How should mineral acids be stored?

Answer 39

Stored separately from organics.

Question 40

How should caustics be stored?

Answer 40

"Stored separately from oxidizers "What does the Safety Data Sheet (SDS) describe?","Hazards

Question 41

Which section of the Safety Data Sheet includes the hazard identification?

Answer 41

Section 2: Hazard(s) Identification.

Question 42

Which section of the Safety Data Sheet provides information on the ingredients?

Answer 42

Section 3: Composition/information on ingredients.

Question 43

Which section of the Safety Data Sheet includes first-aid measures?

Answer 43

Section 4: First-aid measures.

Question 44

Which section of the Safety Data Sheet provides physical and chemical properties?

Answer 44

Section 9: Physical and chemical properties.

Question 45

Which section of the Safety Data Sheet includes stability and reactivity?

Answer 45

Section 10: Stability and reactivity.

Question 46

Which section of the Safety Data Sheet provides toxicological information?

Answer 46

Section 11: Toxicological information.

Question 47

Which section of the Safety Data Sheet includes ecological information?

Answer 47

Section 12: Ecological information.

Question 48

Which section of the Safety Data Sheet provides firefighting measures?

Answer 48

Section 5: Firefighting measures.

Question 49

Which section of the Safety Data Sheet provides accidental release measures?

Answer 49

Section 6: Accidental release measures.

Question 50

Which section of the Safety Data Sheet covers handling and storage?

Answer 50

Section 7: Handling and storage.

Question 51

Which section of the Safety Data Sheet includes exposure controls and personal protection?

Answer 51

Section 8: Exposure controls and personal protection.

Question 52

Which section of the Safety Data Sheet covers disposal consideration?

Answer 52

Section 13: Disposal consideration.

Question 53

Which section of the Safety Data Sheet includes transport information?

Answer 53

Section 14: Transport information.

Question 54

Which section of the Safety Data Sheet provides regulatory information?

Answer 54

Section 15: Regulatory information.

Question 55

Which section of the Safety Data Sheet includes the date of preparation or last revision?

Answer 55

Section 16: Other information.

Question 56

What is a potential radioactive hazard in the clinical laboratory?

Answer 56

Radioactivity encountered during procedures using radioisotopes.

Question 57

What does RACE stand for in fire safety?

Answer 57

Rescue, Alarm, Contain, Extinguish/Evacuate.

Question 58

What does PASS stand for in fire extinguisher operation?

Answer 58

Pull, Aim, Squeeze, Sweep.

Question 59

Which materials are used to extinguish a Class A fire?

Answer 59

Water.

Question 60

Which materials are used to extinguish a Class B fire?

Answer 60

Dry chemicals, carbon dioxide, foam, or halon.

Question 61

Which materials are used to extinguish a Class C fire?

Answer 61

Dry chemicals, carbon dioxide, or halon.

Question 62

Which materials are used to extinguish a Class D fire?

Answer 62

None (sand or dry powder is used).

Question 63

Which materials are used to extinguish a Class K fire?

Answer 63

Liquid designed to prevent splashing and cool the fire.

Question 64

Which type of fire involves wood, paper, and clothing?

Answer 64

Class A.

Question 65

Which type of fire involves flammable organic chemicals?

Answer 65

Class B.

Question 66

Which type of fire involves electrical equipment?

Answer 66

Class C.

Question 67

Which type of fire involves combustible metals?

Answer 67

Class D.

Question 68

Which type of fire involves grease, oils, and fats?

Answer 68

Class K.

Question 69

What is considered an ergonomic hazard?

Answer 69

Activities characterized by constant or excessive repetitive actions, mechanical pressure, vibrations, compressive forces, or static postures for an extended period of time.

Question 70

What color is used for non-infectious dry waste containers?

Answer 70

Black.

Question 71

What color is used for non-infectious wet waste containers?

Answer 71

Green.

Question 72

What color is used for infectious and pathological waste containers?

Answer 72

Yellow.

Question 73

What color is used for sharps waste containers?

Answer 73

Red.

Question 74

What color is used for pressurized containers waste containers?

Answer 74

Red.

Question 75

What color is used for chemical waste containers?

Answer 75

Yellow with black band.

Question 76

What color is used for radioactive waste containers?

Answer 76

Orange.

Question 77

Which institution implements the radioactive policy in the Philippines?

Answer 77

Philippine Nuclear Research Institute (PNRI).

Question 78

Which government department is responsible for the implementation of environmental regulations in the Philippines?

Answer 78

Department of Environment and Natural Resources (DENR).