Which of the following is included in the requirements for a tech-check-tech program?

The correct choice highlights that a tech-check-tech program can include a "vial system and manufactured premix." This is essential because tech-check-tech programs are designed to allow certified pharmacy technicians to verify the work of other technicians, particularly in the preparation of medications. Including manufactured premix, which typically refers to pre-prepared bags or containers of intravenous (IV) solutions, ensures that technicians are able to effectively and accurately check the quality and correctness of compounded medications and those that are ready to be dispensed.

The vial system refers to a method used to organize and track medications in pharmacy practice, which supports efficiency and reduces the potential for medication errors. Both elements are crucial in maintaining safety and adherence to quality assurance in the pharmacy setting.

In contrast, the other options do not align with the established requirements of a tech-check-tech program. Proprietary bags or individual patient prescriptions may not encompass the full scope of checking methodologies, and the absence of written protocols undermines the foundation of safety and training in such programs. Written protocols are vital to provide structure for technicians, ensuring they follow established procedures when verifying medications.