Based on the information provided:
- Surface recoveries of 6 to 7 CFUs (Colony Forming Units) next to the Biological Safety Cabinet (BSC) in a hazardous buffer room are observed, and these results include some spore-forming bacteria and mold.
- Air testing in the room shows little to no growth, which suggests that the air quality might be acceptable, but surface contamination is present.
From the provided answer choices:
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A. No further action is needed because 6 or 7 is still close to the action level. This may not be accurate as just "close" to the action level does not mean it's acceptable; concerns about surface contamination persist.
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B. They should clean and resample until passing results are obtained. This is a prudent and responsible action, as it addresses the presence of spore-forming bacteria and mold on surfaces.
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C. An investigation must be performed because the action level is exceeded. This is not necessarily true since 6 to 7 CFUs may not exceed the established action level; clarification of the action level would be required.
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D. HEPA filters should promptly be changed. There is no evidence provided to suggest that HEPA filters are the source of the contamination, particularly since air tests show little to no growth.
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E. The facility should switch from using a sporicidal agent for material disinfection to sip exclusively. This is an unclear action as "sip exclusively" does not directly address the situation presented.
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F. The facility should install a free-standing air purifier with ozone technology for additional filtration. Ozone generators are generally not recommended in occupied spaces due to potential health risks.
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G. a and d. Given the reasoning for A and D, this option would not be advisable.
Considering the options, the most appropriate response appears to be B. They should clean and resample until passing results are obtained. This response addresses the contamination issue while being proactive about ensuring surface cleanliness aligns with safety standards.
2 answers