A nurse is preparing to administer an opioid medication to a client who is experiencing pain. Which of the following actions should the nurse take?

A. Dispose of the wasted portion of the opioid medication in the sharps box: Opioid medications should never be discarded in the sharps box because it does not ensure proper tracking or accountability. Controlled substances require a witnessed disposal process. B. Count the total amount of opioid medication remaining after removing the needed amount: While tracking inventory is important, this step alone does not ensure compliance with controlled substance regulations or safe disposal practices. C. Ask a second nurse to witness the discarding of unused opioid medication: Having a second nurse witness the disposal of any unused portion ensures accountability, prevents diversion, and complies with legal and institutional controlled substance policies. D. Report opioid medication count discrepancies to the provider: Discrepancies should be reported to the charge nurse or pharmacy according to policy, not directly to the provider. Reporting is part of accountability but not the immediate action during administration and disposal.