Hazardous Drug Management Practice Test 2026 – Complete All-in-One Guide for Exam Success!

Air changes per hour (ACPH) measure how often the air in a room is replaced each hour, which is key for diluting and removing airborne contaminants when handling hazardous drugs. For a Containment Sterile Compounding Area (CSCA) used for sterile HD compounding, the minimum is 12 ACPH. This level provides enough dilution to reduce exposure risk and helps maintain negative pressure relative to adjacent spaces, with exhaust air typically going through HEPA filtration for additional containment. Lower values wouldn’t meet safety standards, and while higher rates like 20 are also protective, the requirement targets the minimum threshold.