Hands:

Question

Hands:

BlackTom AI · Accepted Answer

The question presents a short prompt, “Hands:”, with four answer options. We need to evaluate each option to understand which statements are accurate about handwashing in a laboratory context.
Option A: 'Must be washed before exiting the laboratory, regardless of the type of work performed.' This statement asserts that handwashing is required prior to leaving the lab no matter what work was done. In many lab safety protocols, washing hands before leaving is recommended or mandated to remove potential contaminants, making this a plausible and correct practice in general safety terms.
Option B: 'Must be washed only after using benchtop equipment.' This is overly restrictive. It implies handwashing is required only after using certain equipment, which ignores other potential contamination sources (e.g., handling samples, touching surfaces, or after procedures that involve hazards). Therefore, this option is incorrect because it sets an unnecessarily narrow condition for washing hands.
Option C: 'Should be washed following any procedures involving biohazardous material.' This aligns with standard biosafety practices: hands should be thoroughly washed after handling biohazardous materials to prevent exposure and cross-contamination. This statement is correct.
Option D: 'Both A & C' This option claims that both A and C are true. Given that both A (hands should be washed before exiting) and C (hands should be washed after procedures involving biohazards) reflect sound safety guidance, this combined option accurately represents correct practices.
In summary, option B is incorrect due to its restrictive framing, while options A and C describe correct safety behaviors. The combined option D captures both correct statements A and C as true, which is why it is the appropriate choice.

Hands:单项选择题

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