Prior to preparing a nonsterile compound, a pharmacy technician following USP Chapter 795 guidelines should:

While labeling the final preparation is an important step in the compounding process, it occurs after the compound has been prepared. Proper labeling ensures that the medication is correctly identified and used, but it does not address the immediate need for hygiene before compounding begins.

Patient counseling is an essential component of pharmacy practice, but it is not a preparatory step in the compounding process itself. Counseling occurs after the medication has been prepared and is ready for dispensing, making it irrelevant to the initial steps outlined in USP Chapter 795.

Stock rotation is a practice related to inventory management, ensuring that older products are used before newer ones to maintain efficacy and safety. However, this step is not directly related to the compounding process and does not precede the preparation of a nonsterile compound as specified in USP Chapter 795.