A nurse caring for a client who has a prescription for morphine 5 mg IM accidentally administers the whole 10 mg from the single-dose vial. Which of the following actions should the nurse take first?

A. Report the incident to the pharmacy. While the pharmacy may need to be informed, client safety is the priority. The immediate concern is monitoring the client for opioid overdose effects. B. Notify the client's provider. The provider should be notified, but assessing the client's condition comes first so that the nurse can provide accurate information about any potential adverse effects. C. Measure the client's respiratory rate. The priority action is to assess the client for signs of opioid toxicity, especially respiratory depression. Morphine can cause decreased respiratory rate, sedation, and hypotension. If the respiratory rate is dangerously low (e.g., below 12 breaths per minute), interventions such as administering naloxone (Narcan) may be necessary. D. Complete an incident report. An incident report should be completed, but client safety and assessment take priority before documentation.