A nurse in a mental health facility is caring for an adolescent who is newly admitted for an overdose of prescription pain medication. The client has prescriptions for an anxiolytic and an SSRI antidepressant. Which of the following precautions should the nurse take?

A. Administering medications via the IM route is not routinely required unless the client refuses oral medications or is unable to take them safely. B. Following an overdose, the client is at high risk for further self-harm. Implementing 24-hour one-to-one observation ensures continuous monitoring and promotes safety during this high-risk period. C. Documenting every 2 hours is insufficient for a client at high risk of self-harm. Continuous observation is more appropriate. D. Restricting interactions with other clients is not the priority. Social interaction can be therapeutic unless contraindicated for safety reasons.