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OSMT- Laboratory safety Exam Questions and Answers
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OSMT- Laboratory safety Exam Questions and Answers
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OSMT- Laboratory safety ExamQuestions and Answers
what are the 4 main categories of hazards in the laboratory - Answer -1) biological
2) chemical
3) physical
4) psychological
what type of approach should you have when identifying hazards, assessing the risk
and determining control measures
a) first aid approche
b) systematic approach
c) knowledgeable approach
d) ladder approach - Answer -b) systematic approach- having each job or task reviewed
to identify the hazards of all types
what is the assessment of risk based upon - Answer -based on what the task is, what
equipment is used and where the tasks are being done
what are the level of risks calculated by - Answer -number of worker exposed to hazard,
how often they are exposed and the severity and probability
are hazards the same as risks? - Answer -no
what are the 3 ways to identify hazard controls - Answer -1) engineering controls
2) administrative controls
3) personal controls
what are engineering controls
-name some examples - Answer -actions, items or equipment designed to reduce
harmful exposure
examples- isolation of the hazard from the worker ( glove boxes, enclosed tube systems
in automated equipment)
-ventilation controls (chemical fume hoods, BSC)
,-guarding between the worker and moving parts- pumps, centrifuges)
what are administrative controls - Answer -actions taken by the administrators of an
organization to reduce employee exposure to hazards
eg : -training for new workers
-substitutions for hazards an processes
-reduce prolong exposure- schedule change
-inspections
-emergency plans
-occupational health programs
-pre work checklists
what are some personal controls - Answer -refers to the use of PPE for lab work
ex: gloves
-gowns
-lab coats
eye protection
-respirators
-proper footwear
what are some emergency events that can happen in the lab - Answer --explosion
-chemical spill
-biological spill
-violence
-power failures
-information system failures
-severe weather
-floods
-ventilation failures
-bomb threats
-infectious disease exposure
what are biological hazards - Answer --the potential for a variety of lab-acquired
infections
what are some examples of biological hazards - Answer --needle puncture
-injury with broken glass, sharp object
-contact from biological skills, sprays , aerosols, mucous membrane or broken skin
-aspiration through pipettes
-animal bites or scratches
which administration is responsible for then enforcement of the human pathogen and
toxins act and regulation - Answer -minister of health - the purpose of this legislation is
, to establish a safety and security regime to protect the health and safety of the public
against the risk posed by humans and animal pathogens and toxins
engineer controls for biological hazards - Answer --eliminate or substitute exposure to
risk
-immunization programs
-improve design of lab
-heating, ventilation and AC systems
-autoclaves and incinerators- decontaminate
-BSC
-self-sheathing needles
-sharp disposal containers
-engineered transport containers
-barrier pipette tips
administrative controls - Answer --rules and processes, safe work procedures and
training
ex:
-hazardous assessments
- procedures designed to reduce risk
-signage with hazard identifiers, symbols or pictograms
-implement routine practices and precautions
-workers training
-enforcement of safety rules
-hygiene and housekeeping
-post exposure protocols to minimize harm
what are risk groups - Answer -they are the classification of biological material based on
its inherent characteristics including pathogenicity, virulence, risk of spread, health of
animals and animal population
risk group 1 - Answer -low individual risk, low community risk
risk group 2 - Answer -moderate indiv , low community risk
risk group 3 - Answer -high indiv risk, low community risk
risk group 4 - Answer -high indiv risk, high community risk
definition of containment levels - Answer --the minimum physical features and
operational practices needed for the safe handling and storage of biohazards within an
identified area such as the lab
physical containment requirements - Answer --structure and location
-containment barrier
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