Which device is most frequently discussed in the containment supplemental engineering control category?

• A. Class 2 Biological Safety Cabinet
• B. CSTD
• C. CAI
• D. CAIC

Answer: (B)

The key idea is that containment supplemental engineering controls focus on devices that keep drug handling in a closed system to prevent exposure during transfer. The closed system drug transfer device provides a sealed pathway when drawing up, transferring, or administering hazardous drugs, which minimizes aerosolization and leaks as the medication moves between vials, syringes, and IV bags. Guidelines and practice standards emphasize CSTDs specifically for reducing occupational exposure during drug handling, making them the most frequently discussed example in this category. Other terms like CAI or CAIC aren’t the standard reference for this containment supplement, so CSTDs best fit the concept.