What are the general categories of lab hazards?

• A. Only biological risks
• B. Chemical, electrical, and mechanical risks
• C. Only environmental risks
• D. Only ergonomic risks

Answer: (B)

The correct response highlights that lab hazards can be broadly categorized into chemical, electrical, and mechanical risks. Each of these categories represents a significant area of concern for safety in laboratory environments.

Chemical risks are those related to the use of various chemicals which can include toxic substances, corrosive materials, and flammable compounds. These pose a risk of exposure or accidents that can lead to health issues or physical harm.

Electrical risks encompass dangers associated with the use of electrical equipment, wiring, and machinery. These hazards can lead to electric shock, burns, or fires if not handled properly.

Mechanical risks relate to equipment and tools such as centrifuges, mixers, or glassware. These can pose dangers through moving parts, breaking or shattering, or other potential mechanical failures that could cause injury.

The other choices represent more limited views of laboratory risks. Biological risks, while important, only address one aspect of the hazards present in a lab. Environmental and ergonomic risks are also significant but do not encompass the full range of potential hazards that laboratory personnel might encounter. Therefore, the selection of chemical, electrical, and mechanical risks as a comprehensive categorization is appropriate and accurate in recognizing the broad spectrum of potential dangers in laboratory settings.