UNIT 1 Flashcards
The exercise assigned for the day must be studied _______________ in order to facilitate ease of pre-laboratory discussion.
BEFORE coming to class
Working area must be cleaned with ________________ before and after laboratory exercises.
1:10 dilution of 5% Sodium hypochlorite
What is the dilution of 5% Sodium hypochlorite
1:10
If bleach is unavailable, a similar disinfectant can be
used instead, like
Diluted Lysol solution
Color of plastic bag. For infectious and contaminated materials such as used cotton, tissue, gloves, culture media, and used disposable Petri dishes
Yellow plastic bag
Color of plastic bag. For contaminated sharps like needles
Red puncture proof container
All Personal Protective Equipment (PPEs) must be worn _________ the bacteriology laboratory only and must be _________ when leaving the laboratory premises.
inside ; removed
What is OSHA
Occupational Safety and Health Administration
What is CLSI
Clinical and Laboratory Standards Institute
Set minimum standards for regulation of health facilities and services in the Philippines
Department of Health – Health Facilities and Services Regulatory Bureau
Issue permits to construct, License to Operate and Cert. of Accreditation
Department of Health – Health Facilities and Services Regulatory Bureau
General laboratory safety and infection control guidelines
CLSI (Clinical and Laboratory Standards Institute)
Provide all employees (including the clinical laboratory personnel) with a safe work environment
OSHA (Occupational Safety and Health Administration
Route of infection. Aerosols may form during centrifugation of unstopped tubes or from heating cultures or specimens too rapidly
Airborne
Route of infection. Leakage from a container that holds contaminated specimens
Airborne
Route of infection. Result of failure to wash hands or eating, drinking, smoking, applying cosmetics, or pipetting with the mouth
Ingestion
Route of infection. Result from needlesticks, broken glass, animal bites, or small scratches on the fingers
Direct Inoculation
Route of infection. Such as through the conjunctiva of the eye
Mucous Membrane Contact
Route of infection. Infectious sources include ticks, fleas, and mosquitoes, which may harbor various microorganisms
Arthropod Vectors
Orientation and continuing education for employees
Safety Education
policy and procedures
Safety manual
set of preventive measures designed to reduce the risk of HIV, HBV, and other bloodborne pathogens in the health care setting
Universal Precaution by CDC (1987)
apply to all human blood and all other body fluids that contain visible blood
Universal Precaution by CDC (1987)
Combination of Universal Precautions & Body Substance Isolation to minimize risk of infection transmission
Standard Precautions
All blood, tissue, body fluid, secretions and excretions (except sweat) are considered potentially infectious
Standard Precautions
device that encloses a workspace in such a way as to protect workers from aerosol
Biosafety cabinet
Air that contains the infectious material is sterilized by heat, UV light, or by passage through a ________
HEPA filter
What is HEPA
High Efficiency Particulate Air
BSC Class. allow room (unsterilized) air to pass into the cabinet and around the area and material within, sterilizing only the air to be exhausted
BSC Class I
Common BSC/BSL in the microbiology laboratory
BSC Class IIA, BSL 2
BSC Class. Sterilize air that flows over the infectious material, as well as air to be exhausted.
BSC Class II
Class II Type. Is self-contained, and 70% of the
air is recirculated into the work area
Class II, Type A
Class II Type. Discharged outside the building
Class II, Type B
BSC Class. completely enclosed, ventilated, with negative pressure, leak-tight construction and attached rubber gloves.
BSC Class III
BSC Class. Supply air is drawn in through HEPA filters
BSC Class III
BSC Class. Exhaust air is treated with either double HEPA filtration or HEPA filtration and incineration
BCS Class III
Biosafety level 4 organisms is for
BSC Class III
No known pathogenic potential for immunocompetent individuals.
BSL 1
BSL. Typical examples include Bacillus subtilis.
BSL 1
BSL. Undergraduate laboratory courses operate under
BSL 1
BSL. This category includes the most common microorganisms associated with laboratory-acquired infections, including HBV, HIV, Staphylococcus, and enteric pathogens such as Salmonella and Shigella.
BSL 2
BSL. Level 1 practices plus laboratory coats, protective gloves, limited access, decontamination of all infectious waste, and biohazard warning signs.
BSL 2
BSL. Apparatus includes partial containment equipment (such as classes I and lI biological safety cabinets) when procedures may lead to the production of infectious aerosols.
BSL 2
BSL. Level 2 procedures plus special laboratory clothing and controlled access are recommended for handling clinical material suspected of containing Mycobacterium tuberculosis, Brucella, Coccidioides immitis, Rickettsia, and specific viruses such as arbovirus.
BSL 3
BSL. Level 3 practices plus entrance through a separate room in which street clothing is changed and replaced with laboratory clothing.
BSL 4
BSL. This level is primarily used in research facilities and includes a limited number of exotic viruses including filovirus and arenavirus.
BSL 4
process that kills all forms of microbial life, including bacterial endospores.
Sterilization
process that destroys pathogenic organisms, but not necessarily all microorganisms, endospores, or prions
Disinfection
the removal of pathogenic microorganisms so items are safe to handle or dispose
Decontamination
9 Factors influencing the Degree of Killing
- Types of organisms
- Number of organisms
- Concentration/Compatibility of disinfectant
- Nature of surface to be disinfected
- Contact time
- Temperature
- pH
- Biofilm