Safety Manual Flashcards
Recommended solution to disinfect a microscope with
1:16 sporicidin solution
What type of detergent can be added to a water bath to prevent contamination?
Phenolic detergent
An emergency wash device should be able to provide a flow of water for a period of:
a. 15 mins
b. 60 s
c. Eternity
d. 10 mins
a. 15 mins
Tepid water is:
a. Cold
b. Hot
c. Between 12 and 16 degC
d. Between 16 and 38 degC
d. Between 16 and 38 degC
Can combine with copper in a drain, resulting in a potentially explosive compound
Sodium azide
Autoclave pressure
103.4 kPa
Name 5 categories of hazards
Chemical, biological, physical, ergonomic, psychological
A lab ventilation system should be designed and adjusted to maintain the lab under:
a. Negative pressure
b. Neutral pressure
c. Positive pressure
d. Variable pressure
a. Negative pressure
3 major elements of WHMIS:
a. SDS, training, PPE
b. Labels, training, SDS
c. SDS, inventory control, PPE
d. Training, PPE, labels
b. Labels, training, SDS
WHMIS 2015 has how many major hazard groupings
3
What is the lowest current (from a 110 volt power source) that has the potential to cause a fatality?
a. 15 amperes
b. 250 milliamperes
c. 15 milliamperes
d. 250 amperes
c. 15 milliamperes
The following should be included on the hazard assessment documents:
a. Who identified each hazard
b. Who should implement additional controls
c. How many accidents occurred as a result of the hazard
d. All of the above
b. Who should implement additional controls
Disinfectant to use after cutting a suspected CJD specimen on the cryostat
Sodium hydroxide
T/F
It is advisable to send out hazardous wastes as infrequently as possible
False
Send frequently
2 most common errors workers make with respect to PPE?
Not wearing PPE when indicated
Self-contamination during PPE removal
Recommended face velocity for a fume hood:
a. 50 m/s
b. 0.5 m/s
c. 50 ft/min
d. 0.5 ft/min
b. 0.5 m/s
Which of the following factors do not determine if an infection will occur as a result of an exposure to an aerosol:
a. The persistence of the aerosol
b. The susceptibility of the individual
c. The viability of the organisms
d. The risk level of the organism
d. The risk level of the organism
Which of the following diseases is a risk for animal care workers as well as expectant mothers handling domestic cat litter at home?
a. Human parvovirus
b. Rubella
c. Hepatitis B
d. Toxoplasmosis
d. Toxoplasmosis
What to use for highly concentrated spills of biological agents?
Peroxyacetic acid mixed w/ H2O2
How many castors should chairs have for maximum stability?
5
Which class of fire extinguishers do you use for flammable metals
Class D
Class B fire extinguishers are effective against?
Liquid fuels (organic solvents, oils)
T/F
WHMIS labels are not required on hazardous wastes.
True
T/F
In the event someone ingests a poison, you should induce vomiting.
False
The type of ventilation that dilutes indoor air with a supply of fresh air is called:
a. Local ventilation
b. Convection ventilation
c. Technical ventilation
d. General ventilation
d. General ventilation
What do you routinely use to disinfect a cryostat
100% alcohol
May be detected as vapour emanating from drain traps many years after use
Mercury
WHMIS labels do not include:
a. Supplier labels
b. Consumer labels
c. Workplace labels
d. Risk phrases
b. Consumer labels
Designed to provide a controlled flow of water to a portion of the body at a velocity low enough to be non-injurious to the user
Drench hose
A carbon dioxide extinguisher is effective against which class(es) of fire?
B, C
Very FIRST thing you do after a needlestick injury
Cleanse with soap and water
Autoclave temperature
121 degC
T/F
It is required that emergency wash devices have a drain.
False
Steps involved in changing activities, moving out of a lab or closing a lab altogether to make sure the lab is certified and safe for its new use
Decommissioning
Hierarchy of controls from most effective to least
Engineering > Administrative > PPE
When decontaminating surfaces where work with radioactive materials was done, the activity level on surfaces should be reduced to:
a. 2x background level
b. At or near background
c. Not relevant, it will decay
d. Zero
b. At or near background
A water type fire extinguisher is effective on which class(es) of fire?
Only A
What should be worn when changing a cryostat knife blade?
Metal mesh gloves
A cryogenic liquid is any liquid at a temperature below:
a. The freezing point of water
b. -150 degC
c. -273.3 degC
d. -73.3 degC
d. -73.3 degC
T/F
Labeling of wastes is unimportant since they are being discarded anyways
False
T/F
A fixed-position face shield may be used any time eye protection is required
False
Technostress can be a result of:
a. Too many long hours in front of the computer monitor
b. Introducing technological change into the lab
c. Long hours as a lab professional
d. Using old equipment
b. Introducing technological change into the lab
Radioisotope that should be shielded by Plexiglass and NOT lead:
a. Phosphorus-32
b. Carbon-14
c. Tritium
d. Iodine-125
a. Phosphorus-32
This should be worn when using a freezing microtome to avoid exposure to lyophilized tissue dusts
Surgical mask
Autoclave - minimum operating time
15 mins or more
If this chemical condenses in the lining of a fume hood duct, it can leave behind explosive crystals
Perchloric acid
Which class of fire extinguishers do you use for electrical fires
Class C
Which type of radioactive particles presents the greatest risk once inside the body?
a. Alpha
b. Gamma
c. Beta
d. Delta
a. Alpha
When in the lab, wear safety glasses:
a. At all times
b. Only when working with hazardous products
c. On religious holidays
d. In conjunction with sensible shoes
a. At all times
At what classification level do lasers present a risk of eye injury from a reflected beam?
a. I
b. II
c. IIIA
d. IIIB
d. IIIB
Which type of ionizing radiation is the most penetrating?
a. Gamma rays
b. Alpha particles
c. Beta particles
d. Neutrons
a. Gamma rays
These are designed to capture heat or contaminants from machines or processes
Canopy hood
The systematic process of verifying that each and every physical component of the lab has been designed and installed according to regulations, safety standards, etc.
Commissioning
Other types of hazardous waste are regulated:
a. Federally
b. Provincially
c. At the municipal level
d. None of the above
b. Provincially
Fire extinguisher type that is the most versatile, but leaves a mildly corrosive powder which must be cleaned
A-B-C dry chemical
In risk assessment, the degree of harm or injury that may result from an exposure is:
a. Probability
b. Degree of Damage (DoD)
c. Severity
d. Frequency
c. Severity
If radioactive materials are used, lab decommissioning is a legal requirement of:
a. The Health and Safety Commission
b. The Canadian Nuclear Safety Commission
c. The Canadian Commissioning Commission
d. The Canadian Centre for Occupational Health and Safety
b. The Canadian Nuclear Safety Commission
2 ‘signal words’ that may appear on supplier labels?
Warning and Danger
This chemical should NOT be used as a disinfectant in a water bath because it creates an explosion hazard
Sodium azide
What do each letters in the PASS technique stand for
Pull, aim, squeeze, sweep
