Laboratory Chapter 1-3 Flashcards
The primary risks that determine levels of containment
Infectivity
Severity of disease
Transmissibility
The nature of the work conduct
is the application of safety precautions that reduce a laboratorian’s risk
of exposure to a potentially infectious microbe and limit contamination of the work
environment and, ultimately, the community
Biosafety
organisms are well-characterized strains of microorganisms
not known to cause disease in healthy human adults
Biosafety level 1
organisms are moderate-risk microorganisms associated with
less serious human diseases whose potential for transmission is limited and a proven
treatment for the disease exists
Biosafety Level 2
organisms are high-risk microorganisms with a true potential
for infection by aerosols and in which the resulting disease may have serious or lethal
consequences.
Biosafety Level 3
is a very important biosafety practice.
Microbiological risk assessment
Risk management process
Identify the hazard and risk
Evaluate the risk
Implement a risk mitigation plan as need
Evaluate effectiveness of control
(no or low individual and community risk): A microorganism that is unlikely
to cause human or animal disease.
.
Risk Group 1
(moderate individual risk, low community risk): A pathogen that can cause
human or animal disease but is unlikely to be a serious hazard to laboratory workers, the
community, livestock or the environment. Laboratory exposures may cause serious
infection, but effective treatment and preventive measures are available and the risk of
spread of infection is limited.
Risk Group 2
(high individual risk, low community risk): A pathogen that usually causes
serious human or animal disease but does not ordinarily spread from one infected
individual to another. Effective treatment and preventive measures are available.
Risk Group 3
(high individual and community risk): A pathogen that usually causes
serious human or animal disease and that can be readily transmitted from one individual to
another, directly or indirectly. Effective treatment and preventive measures are not usually
availab
Risk Group 4
an enclosed, ventilated laboratory workspace for safely working with
materials contaminated with (or potentially contaminated with) pathogens requiring a
defined biosafety level. It is intended to offer protection to the user and environment from
the aerosol hazards arising from the handling of infected and other hazardous biological
material. So
Biosafety cabinet
o heat or boil solution in laboratory
Bunsen burner
used to inoculate test
samples into culture media for bacterial or fungal
Cultures, antibiograms, etc.
Wire loop/inoculating loop
to transfer quantified volume of specimen
or solution)
Pipettor
