Which combination lists all triggers that require C-PEC decontamination?

• A. Daily decontamination only
• B. After a spill and before certification
• C. Before and after certification
• D. Daily, after a spill, before and after certification, after voluntary interruption, and if the ventilated tool is moved

Answer: (D)

Regular C-PEC decontamination is done to remove drug residues and prevent cross-contamination, both from routine use and after events that could spread contamination. The triggers that require decontamination include routine daily cleaning because residues can accumulate with normal work; after a spill to remove spilled drug from all surfaces; before and after certification to ensure the hood is clean for testing and to remove any residues from the certification process; after any voluntary interruption (such as a shutdown or power issue) to restore a clean, controlled environment; and if the ventilated tool is moved, since repositioning can disturb residues and airflow, potentially spreading contamination. This comprehensive set ensures decontamination occurs whenever residues could pose a risk.

The other options are incomplete because they miss one or more of these triggers.