Histology Certification Laboratory Safety 2

Question 1

Which class of fire extinguisher is appropriate for a chemical solvent fire in a histology lab?

Accepted Answer

Class B

Answer

Class B extinguishers are designed for flammable liquid fires, including chemical solvents such as xylene and alcohol.

Question 2

What is the correct first action when a histology technician splashes formalin into their eyes?

Accepted Answer

Flush eyes with water at an eyewash station for at least 15 minutes

Answer

Immediate, prolonged flushing at an eyewash station for a minimum of 15 minutes is required to dilute and remove formalin from the eyes.

Question 3

In the hierarchy of controls, which measure provides the highest level of protection against hazardous chemical exposure?

Accepted Answer

Elimination or substitution

Answer

Elimination or substitution removes the hazard at the source and is ranked highest in the hierarchy of controls.

Question 4

Which OSHA standard specifically governs occupational exposure to formaldehyde in U.S. laboratories?

Accepted Answer

29 CFR 1910.1048

Answer

29 CFR 1910.1048 is OSHA's Formaldehyde Standard, setting permissible exposure limits and required controls.

Question 5

A histology lab receives a new chemical. Which document must accompany it and be accessible to all staff?

Accepted Answer

Safety Data Sheet (SDS)

Answer

Safety Data Sheets (SDS) are legally required to accompany hazardous chemicals and must be readily accessible to employees.

Histology Certification Practice Test