Lab Safety Quiz

Which of the following are appropriate times to clean and disinfect the laboratory bench?

After the completion of lab activities. Between each step of the lab protocol if the lab instructions call for this procedure. Prior to the start of lab activities.

Which of the following are appropriate times to complete hand washing?

Any time the hands are potentially contaminated with chemicals or microorganisms. Between each step of the lab protocol if the lab instructions call for this procedure. Prior to the start of lab activities. After the completion of lab activities.

Dissection specimens and bacterial culture plates should be discarded into a _____ bin when you are finished with them.

Biohazard

Which of the following are potential hazards encountered in the laboratory?

Corrosive chemicals Open flames Sharps instruments Infectious agents

All laboratory chemicals can be disposed of by pouring them down the drain.

False

The lab shower is used to clean large spills within the fume hood.

False

Which of the following items should be autoclaved after working in the lab?

Glass bacterial culture tubes

Which of the following selections below are laboratory safety protocols established to protect?

Immunocompromised individuals who enter into biohazardous lab rooms. The lab workers directly involved with the protocol. Visitors to the lab who do not understand the science experiment. The lab equipment and materials used in the protocol.

Which of the following materials should be discarded in a biohazard bag or biohazard bin?

Long plastic serological pipettes Plastic petri dishes with cultures Dissection tissue

Which of the following should be done first in the event of a laboratory accident?

Notify the instructor

Which of the following materials should be discarded in a regular trash can?

Paper towels used to wipe off the lab bench before the exercise. Scrap paper Completed lab assignments that are no longer needed.

Which of the following materials should be discarded in a biohazard bag?

Plastic petri dishes with cultures Disinfectant-soaked paper towels used to clean a microbial spill. Dissection tissue Long plastic serological pipettes

Which of the following are personal items on the laboratory bench?

Purse Book bag Phone

Which of the following items must be placed into a hard-sided sharps container rather than a biohazard bag or regular trash can?

Scalpel blades Glass slide and cover glass Needles/syringes Pasteur pipettes (glass)

Slides, scalpels, razor blades, cover glasses, and capillary tubes are all classified as:

Sharps

Where should you dispose of glass slides, syringes, used scalpel blades, and glass Pasteur pipettes?

Sharps container

Scrap notes, paper towels, and lens paper should be discarded into a _____ bin when you are finished with them.

Trash

Personal protective equipment (PPE) can help prevent contamination of an experiment.

True

Which of the following materials should be washed in the sink?

Used glass beaker Tray used in preserved specimen dissection. Tools used in preserved specimen dissection.

When you are finished with the dissection tray and forceps used in dissection of a preserved specimen you should

Wash in the sink

In which of the following situations would you use the fume hood pictured here?

Working with hazardous chemicals.

After they are used, reusable instruments or glassware that require sterilization should be placed in the

autoclave

Information on the hazards posed by a chemical used in the laboratory can consistently be found:

on the Safety Data Sheets (SDS).

The purpose of lab safety rules and protocols is to:

protect everyone in the lab from injury and infection.

Which of the following statements concerning lab protocols is correct?

Make-up and contact lenses should never be applied during lab.

In what type of emergency situation would you utilize the equipment seen in this image?

Removing a large volume of chemicals spilled on unprotected arms or splashed onto your face or eyes.

When you are finished with the dissection tray and forceps used in dissection of a preserved specimen you should:

wash in the sink.

Hand washing is not necessary if gloves have been worn throughout the lab exercise.

False

You have finished working with some bacterial cultures in glass tubes. What should you do to dispose of these cultures?

Autoclave them

Which of the following materials should be washed in the sink?

Beaker used for steaming during a staining exercise. Forceps and probe used in dissection of a preserved specimen.

Infectious agents in the laboratory are classified into four _____ levels based on their ease of transmission and ability to cause disease.

Biosafety

Which of the following are appropriate types of shoes in the lab?

Boots Tennis shoes