hazards Flashcards

(57 cards)

1
Q

what does the hazard symbol indicating a harmful / irritant substance mean

A

may cause harm in some way/cause irritation.

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2
Q

what does the hazard symbol indicating a toxic substance mean

A

poisonous if swallowed or breathed in.

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3
Q

what does the hazard symbol indicating a Highly flammable substance mean

A

can catch fire easily.

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4
Q

what does the hazard symbol indicating an explosive substance mean

A

may explode if exposed to flame/heat/friction.

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5
Q

what does the hazard symbol indicating a corrosive substance mean

A

may destroy living tissue/cause burns.

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6
Q

what does the hazard symbol indicating an environmental hazard mean

A

pollute or damage the environment.

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7
Q

what does the hazard symbol indicating an oxidising substance mean

A

Provides oxygen to make other substances burn more fiercely.

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8
Q

what does the hazard symbol indicating a health hazard substance mean

A

can cause damage to genetic material and organs.

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9
Q

what does the hazard symbol indicating a radioactive substance mean

A

The substance is radioactive.

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10
Q

what does the eye protection symbol mean

A

You must wear safety glasses when doing the experiment.

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11
Q

what does the wash your hands symbol mean

A

After the experiment, wash your hands to remove chemicals.

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12
Q

what does GPL stand for

A

good laboratory practice

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13
Q

where are the GPLs used

A

non clinical lab studies

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14
Q

what do GPLs ensure

A
  • Reliable, reproductive and traceable data
  • Work is conducted ethically and safely
  • Results trusted by regulators, companies and researches
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15
Q

what does GCP stand for

A

good clinical practice

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16
Q

where are GCPs used

A

in clinical trails involving human participants

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17
Q

what 4 things must a company testing vaccines do

A

Get informed consent from patients.​
Ensure a double-blind study if needed.​
Keep medical data confidential.​
Follow ethical review board approval.

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18
Q

what are the rules around chemical handling

A
  • Read the Material Safety Data Sheet (MSDS) before use.​
  • Label all containers clearly.​
  • Never pipette by mouth.​
  • Use a fume hood for volatile or toxic substances.​
  • Dispose of chemicals in designated containers
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19
Q

what are the rules around glassware handling

A
  • check for cracks before use.​
  • use both hands.​
  • when heating only use heat-resistant glass
  • Use tongs or heatproof gloves to handle hot equipment.
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20
Q

when should risk assessments be used

A
  • Handling hazardous materials
  • Using heat / flame
  • Disposing of biological / clinical waste
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21
Q

what are Aerosols

A

tiny airborne particles often created in labs through processes such as pipetting or opening culture plates

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22
Q

what is the lab hazard of aerosols

A

can carry harmful microorganisms and spread them through the air which poses an inhalation risk

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23
Q

what is the Microbiological link connecting to aerosols

A

pathogens such as Mycobacterium, tuberculosis or Legionella can be transmitted

24
Q

what is the solution to the risk of aerosols

A

using fume cabinets

25
what is the hazard of direct contact
Physical contact between a person and a contaminated source
26
what is the lab hazard of direct contact
Touching cultures, samples, or infected animals without PPE can lead to skin exposure or entry through cuts.
27
what is the Microbiological link connecting to direct contact
disease transmission
28
what is the solution to the risk of direct contact
gloves / lab coats
29
what is the hazard of indirect contact
transmission via contaminated objects
30
what is the lab hazard of indirect contact
poor cleaning or shared equipment
31
what is the Microbiological link connecting to indirect contact
bacteria that can survive on surfaces and be transferred
32
what is the solution to the risk of indirect contact
cleaning and not sharing equipment
33
what is the hazard of infection
invasion and multiplication of microorganisms in the body
34
what is the lab hazard of infection
working with pathogens
35
what is the Microbiological link connecting to infection
infections can result from mishandled cultures or spills
36
what is the solution to the risk of infections
following proper protocols
37
what is the hazard of zoonoses
diseases transmitted from animal to human
38
what is the lab hazard of zoonoses
handling animal samples or working with live animals
39
what is the Microbiological link connecting to zoonoses
salmonella (reptiles), leptospira (rodents), brucella (livestock)
40
what is the solution to the risk of zoonoses
strict biosafety practices
41
what is the hazard of sepsis
life-threatening condition, caused by response to an infection, leads to tissue damage and organ failure.
42
what is the lab hazard of sepsis
exposure to certain bacteria is it enters the body
43
what is the Microbiological link connecting to sepsis
handling cultures could lead to bloodstream infections
44
what is the solution to the risk of sepsis
proper containment of cultures
45
what is the hazard of spores
dormant / resistant forms of certain bacteria / fungi that can survive extreme environmental conditions
46
what is the lab hazard of spores
spores remaining on surfaces / air for long periods, they are hard to kill
47
what is the Microbiological link connecting to spores
pathogens form spores that can cause serious infections
48
what is the solution to the risk of spores
proper sterilisation
49
what is the function of the autoclave
sterilising using high pressure steam
50
what are the associated hazards with an autoclave
burns, pressure explosion, release of live microbes
51
Consequences of an autoclave if used incorrectly
contamination of work area, infection risk, failed sterilisation
52
what is the function of the Bunsen burner
provides flame to sterilise tools, create aseptic zones by updraft of air
53
what are the associated hazards with a bunsen burner
fire hazard, burns, creation of aerosols
54
Consequences of a bunsen burner if used incorrectly
spread of airborne microbes, burns, contamination of cultures
55
what is the function of chemicals
used to kill microbes on surfaces, stain microorganisms for viewing or preserving samples
56
what are the associated hazards with chemicals
skin and eye irritation, toxic vapours, corrosive effects, improper labelling or storage
57
Consequences of a chemicals if used incorrectly
chemical burns, exposure to toxic fumes, misuse ;leading to contamination