Deck 2: Safety in the Clinical Chemistry Laboratory

Question 1

OSHA standards are written in which of the following documents?

A) Codes of State Regulations (CSRs)
B) Codes of Federal Regulations (CFRs)
C) Safety Data Sheets (SDS)
D) National Fire Protection Agency (NFPA)

Answer 1

Codes of Federal Regulations (CFRs)

Question 2

Which of the following practices is inappropriate when establishing quality controls ranges?

A) Exclusion of any quality control results greater than ±2 standard deviation from the mean
B) Compare your data to the manufacturer of the quality control material.
C) Gather quality control data for a long period of time if necessary.
D) Using control results from all shifts on which the assay is performed

Answer 2

Exclusion of any quality control results greater than ±2 standard deviation from the mean

Question 3

Liquid nitrogen is an example of which of the following?

A) Carcinogen
B) Mutagen
C) Halogen
D) Cryogen

Answer 3

Cryogen

Question 4

The label identification system designated NFPA 704-M represents which of the following warnings?

A) Biohazard materials
B) Mechanical devices
C) Chemical hazards
D) Laboratory safety hoods

Question 5

Sources of nonionizing radiation include which of the following?

A) Beta radiation emitting isotopes (e.g., tritium)
B) Gamma radiation emitting isotopes (e.g., ¹²⁵Iodine)
C) Microwaves, tungsten-halogen lamps, xenon lamps
D) X-ray imaging devices

Question 6

Which of the following statements describes the proper method of storing chemicals in the laboratory?

A) According to their chemical properties and classifications
B) Inside a chemical fume hood
C) Alphabetically, for easy accessibility
D) Inside a walk-in type refrigerator

Question 7

Which of the following statements is correct when handling cryogenic liquids?

A) It is not necessary to wear any personal protective equipment because there is no potential for injury to the body.
B) Wear proper personal protective equipment, including a lab coat that is buttoned, heavy gloves and a face shield or safety goggles.
C) Always pour cryogenic liquid into water not the reverse.
D) Cryogenic liquids do not cause embrittlement of materials.

Question 8

Which of the following statements is correct regarding safety cabinets?

A) Safety cabinets are not required to be vented.
B) Cryogenic liquids may be stored in safety cabinets.
C) Large amounts of volatile solvents should be stored in a safety cabinet but are not required to be approved by NFPA and meets OSHA standards.
D) Large amounts of volatile solvents must be stored in a safety cabinet that is approved by NFPA and meets OSHA standards.

Question 9

Which of the following statements is correct regarding laboratories and waste material?

A) Laboratories are not identified by Resource Conservation and Recovery Act (RCRA) as "waste generators."
B) Laboratories are identified by Resource Conservation and Recovery Act (RCRA) as "waste generators."
C) Laboratories are exempt from all state and Federal regulations regarding waste materials.
D) Hydrocarbons, nitro compounds, mercaptan, Freon and concentrated acids can be pour down the sink drains according to Resource Conservation and Recovery Act (RCRA).

Question 10

The CDC recommends vigorous rubbing together of all lathered surface for at least:

A) 15 seconds.
B) 60 seconds.
C) 5 minutes.
D) 15 minutes.

Question 11

Which of the following statements describes "engineered control"?

A) A technique used to provide optimum control for quality testing of patient specimens
B) Represents an alarm systems that alerts everyone in the laboratory that there is a fire in the building
C) Safety equipment that isolates or removes the bloodborne pathogen hazard from the workplace and represents the preferred method for controlling hazards
D) Safety equipment that isolates or removes only radiation hazard from the workplace and represents the preferred method for controlling radioactive hazards