Question 10

Pouring bleach on the spill and letting it soak for 60 seconds is the appropriate action.

In the event of a large spill involving venous blood, it is crucial to properly disinfect the area to prevent contamination. Pouring bleach on the spill and allowing it to soak for 60 seconds effectively kills pathogens present in the blood.

A) Cover the spill until maintenance arrives.

Covering the spill does not address the contamination and could pose a risk to anyone who might come into contact with it. This action is insufficient as it merely contains the spill without disinfecting the area, leaving potential pathogens active.

B) Pour bleach on the spill and let it soak for 60 seconds.

This is the correct response because bleach is a potent disinfectant that effectively neutralizes viruses and bacteria in blood spills. Allowing it to soak for 60 seconds ensures adequate contact time for disinfection, making it the safest option for handling biohazardous material.

C) Evacuate the laboratory.

While evacuating the laboratory may seem like a precautionary measure, it does not address the immediate risk posed by the spill. Evacuation alone does not facilitate the decontamination of the spill, which is necessary to ensure safety for those who might return to the area.

D) Apply a liquid thickening agent on top of the spill.

Using a thickening agent may help contain the spill but does not disinfect it. This action can create a false sense of security, as it does not eliminate the pathogens in the blood, making it an inadequate response to a hazardous spill.

Conclusion

Pouring bleach on the spill is the most effective method for ensuring the area is disinfected and safe. Other options either fail to eliminate the risk of contamination or do not provide an effective solution to the biohazard. Therefore, option B is the definitive correct answer, as it combines safety and efficacy in dealing with blood spills.