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35 Cards in this Set

  • Front
  • Back
Mercury falls into which hazard classifications...
chemical
Which of the following chemicals is both toxic and flammable?

a) chloroform
b) xylene
c) mercury
d) hydrochloric acid
b) xylene
Formaldehyde is considered a...
possible carcinogen
Which of the following is an explosive compound that shold not be stored in the laboratory?

a) mercuric chloride
b) anhydrous picric acid
c) glacial acetic acid
d) chloroform
b) anhydrous picric acid
A type A fire extinguisher should be used on fires involving...
paper or wood
What standards should be followed with regards to HIV and HBV?
bloodborne pathogen
Which of the following may be disposed of in the sanitary sewer system according to Environmental Protection Agency (EPA) and Centers for Disease Control (CDC) guidelines?

a) silver nitrate
b) absolute alcohol
c) pulverized tissue
d) blood
d) blood
In a hazard communication program, records of employee training must be kept for...
duration of employment plus 30 years
The Formaldehyde Standard mandates a permissible exposure limit (PEL) of...
.75 ppm
Following monitoring, the action level of formaldehyde is found to be .75ppm. This means that:
a medical surveillance program must be established
Which type of extinguishers should be used on a fire involving electrical equipment?
C
Which type of extinguishers should be used on a fire involving xylene?
B
Development of a chemical hygiene plan is mandated under which standard...
laboratory
Monitoring of formaldehyde exposure shows the STEL to be 2.0ppm. This means that...
any action depends on the time weighted average (TWA) and action level
The amount of a chemical substance that when ingested is expected to cause the death of 50% of an experiemntal animal population is known as the...
LD50
Concentrated HCl may not be disposed of in the sanitary sewer because it is classified as...
corrosive
Isopentane is a very hazardous chemical because it has...
has a flash point below 0°C
HCl (approximately 6N) has been splashed on a small area of the left arm of a laboratory worker. The most appropriate action is to...
wash the arm for 10 minutes with cold water and soap, then seek medical attention
The total volume (gallons) of flammable liquids that may be stored in a room outside a storage cabinet is...
10
When used in a National Fire Protection Association (NFPA) diamond, which of the numbers indicates a minor hazard?
1
The left blue diamond in the NFPA chemical hazard label provides information on what?
health hazards
The top red diamond in the NFPA chemical hazard label provides information on what?
flammability
The right yellow diamond in the NFPA chemical hazard label provides information on what?
reactivity
T/F: Specimen containers must be labeled with a biohazard warning label if they contain potentially infections material unless universal precautions are used in the handeling of all specimens, including those no longer infectious.
true
T/F: Specimens may be returned to the patient without any risk to the patient.
false
T/F: Cryogenic sprays pose little risk when used to freeze tissue in a crystat.
false
T/F: All infectious waste should be placed in biohazard containers.
true
T/F: Ergonomics associates cumulative trauma disorders with the working environment.
true
T/F: The material safety data sheet (MSDS) on each chemical used in the laboratory must be available to all employees.
true
T/F: The PEL for formaldehyde is .5ppm.
false

.75ppm
T/F: Class D fires are of marked concern in histopathology.
false
T/F: Some automatic Halogen extinguishers cannot be used in areas in which employees would be expected to remain after discharge of the extinguishing agent.
true
T/F: The volume of liquid stored in a flammable storage cabinet is unregulated.
false
T/F: Hydrated picric acid poses less hazard than anhydrous picric acid.
true
T/F: Acids should be diluted by pouring the concentrated acid into water.
true