Hazardous Drug Management Practice Test

Hazardous-drug compounding requires strong containment of any aerosols generated inside the primary engineering control. Because these devices create and release drug-containing aerosols, the exhaust must be directed outside the building to prevent re-entrainment or mixing with room air. Vented air should go through a dedicated external exhaust so it isn’t recirculated or drawn back into the HVAC system, protecting personnel and other areas from exposure.

That’s why externally venting through a dedicated exhaust is required. Venting internally would circulate contaminants within the room or building, and not venting at all would allow buildup of hazardous aerosols.