Laboratory Safety Flashcards
7 cards from real Histology Certification practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Laboratory Safety flashcards as text
Which waste disposal container is correct for discarded xylene used during deparaffinization?
Answer: Labeled flammable liquid waste container
Xylene is a flammable, regulated chemical waste that must be collected in a labeled flammable liquid waste container for proper disposal.
A histology technician notices a fellow employee is not wearing gloves while handling tissue specimens. The best immediate action is to:
Answer: Provide gloves and remind the employee of PPE policy immediately
Immediate intervention by providing PPE and a verbal reminder protects the employee and upholds lab safety culture without delay.
Which GHS pictogram indicates a chemical that is an acute toxin (skull and crossbones)?
Answer: Skull and crossbones
The skull and crossbones GHS pictogram specifically denotes substances that are acutely toxic via oral, dermal, or inhalation routes.
What is the purpose of a chemical hygiene plan (CHP) in a histology laboratory?
Answer: To outline procedures protecting employees from chemical hazards
OSHA's Laboratory Standard (29 CFR 1910.1450) requires a CHP that details measures to protect workers from hazardous chemical exposures.
How should expired formalin fixative be disposed of in a U.S. histology laboratory?
Answer: Collect in a labeled hazardous waste container for licensed disposal
Formalin is a regulated hazardous waste requiring collection in properly labeled containers and pickup by a licensed hazardous waste contractor.
Which biosafety level is appropriate for routine histology work involving human tissue specimens of unknown infectious status?
Answer: BSL-2
BSL-2 practices are required for work with human-derived materials that may contain bloodborne pathogens or other moderate-risk agents.
In a histology lab, the Safety Data Sheet section that describes first aid measures is section number:
Answer: Section 4
Section 4 of the GHS-format SDS is dedicated to first aid measures for exposure by inhalation, skin contact, eye contact, and ingestion.