PTCB Certified Pharmacy Technician (PTCE)Order Entry and ProcessingMedium
A pharmacy technician is preparing a compounded sterile preparation. After donning appropriate personal protective equipment (PPE) and performing hand hygiene, what is the NEXT critical step before beginning compounding within the sterile environment?
- AWiping down all interior surfaces of the primary engineering control (PEC) with sterile 70% isopropyl alcohol (IPA).
- BLabeling all ingredients and the final product.
- CVerifying the prescription with the pharmacist.
- DGathering all necessary compounding components outside the PEC.
Show answer & explanationAnswer & explanation
Correct answer: A. Wiping down all interior surfaces of the primary engineering control (PEC) with sterile 70% isopropyl alcohol (IPA).
After garbing and hand hygiene, the immediate next step before compounding in the sterile environment is to disinfect the workspace (PEC interior) to ensure a sterile field, as per USP <797> guidelines.
Why the other options are wrong
- B. Labeling is done after compounding or during preparation, not as the immediate next step after garbing.
- C. Prescription verification happens earlier in the process, before beginning compounding activities.
- D. Gathering components is part of preparation, but the PEC must be cleaned immediately prior to introducing items for compounding.
PEC Disinfection (Sterile Compounding)
The critical step of thoroughly cleaning and disinfecting the interior surfaces of the Primary Engineering Control (PEC) with sterile 70% isopropyl alcohol before beginning sterile compounding.
- Performed after garbing and hand hygiene.
- Ensures aseptic environment.
- Critical for preventing contamination.
- Part of USP <797> requirements.
Memory trick: Garb, Wash, Then Wipe Down, Ready for the Crown!