Compounding, Sterile Preparations, and Hazardous Drugs
Compounding questions test whether the pharmacist matched the preparation to the correct environmental and procedural standard. Massachusetts regulates compounding pharmacies as a distinct facility category, and sterile compounding is governed by recognized standards such as USP <797> (sterile) and USP <800> (hazardous drugs), which the Board enforces.
Concepts: nonsterile compounding requires trained personnel, verified procedures, and documented quality checks. Sterile compounding is categorized by risk level and requires an ISO-classified cleanroom environment, environmental monitoring (viable and nonviable particle testing), validated processes, and assigned beyond-use dates based on the risk category and storage conditions. Hazardous drugs require a negative-pressure space, containment ventilated enclosures (or other engineering controls), closed-system transfer devices where required, personal protective equipment, and documented medical surveillance and deactivation/cleaning procedures.
Traps: (1) assigning a longer beyond-use date than the risk category permits; (2) confusing the requirements for low-risk with those for high-risk preparations or for immediate-use; (3) skipping environmental monitoring documentation because the room "passed" previously; (4) treating hazardous-drug handling as a labeling issue rather than an engineering/work-practice issue; (5) forgetting that a prescription for an individually identified patient is different from anticipatory compounding, which carries additional conditions and recordkeeping.
Rule of thumb: for any compounding vignette, ask three questions - is it sterile or nonsterile, is it hazardous or nonhazardous, and what BUD does the risk category allow? The correct answer usually turns on one of those three.
Worked example: A pharmacy wants to prepare a batch of a sterile product in advance of prescriptions. Anticipatory batch preparation requires a documented procedure, quality testing, appropriate BUD, and records showing the basis for the beyond-use dating - a single patient prescription's shorter BUD logic does not transfer.