In which situation may a pharmacist destroy controlled substances in an institution?

Pharmacists in an institutional setting are permitted to destroy controlled substances under specific circumstances to ensure compliance with regulatory standards and to maintain proper oversight of drug management. The correct answer emphasizes the importance of having a witness during the destruction process.

When a pharmacist destroys controlled substances, it is crucial to have a witness present, typically a registered nurse or another pharmacist, to verify that the destruction has occurred. This requirement helps safeguard against potential abuse, loss, or diversion of controlled substances, and it ensures accountability within the institution. The presence of a witness serves as a form of checks and balances within the procedure, ensuring that the destruction is legitimate and properly documented.

Other options do not meet the regulatory requirements necessary for the destruction of controlled substances. For instance, not making any record of the destruction would violate legal protocols that mandate proper documentation of all transactions involving controlled substances. A meeting with a physician, while possibly appropriate for discussing patient care, does not pertain to the procedural requirements for destruction. Lastly, while notifying law enforcement may be a necessary action in some scenarios, it is not a requirement for the destruction of controlled substances in a pharmacy setting unless there is suspicion of theft or illegal activity.