A charge nurse is orienting a newly licensed nurse to the unit-dose medication system. Which of the following information should the charge nurse include in the teaching?

A. The pharmacist typically restocks the medication drawer each day to ensure that medications are available and up-to-date. This is an essential component of the unit-dose medication system. B. The nursing supervisor does not usually unlock the medication drawer; this is typically done by the nurse in charge or the individual administering the medications. C. While it is important to limit the number of controlled substances, the medication drawer is usually stocked in a manner that allows for easy access to necessary medications, and there are regulations that govern this process. D. Opened medications should not necessarily be disposed of at the end of each shift; they may be retained if they are still within their stability period and are properly stored according to protocols.