During a shift change, you observe a colleague in the emergency department acting nervously and making multiple trips to the medication room without proper documentation. Later, a discrepancy is found in the opioid count. According to hospital policy, what is the most appropriate immediate action?
Adjust the opioid count in the system to match the physical count.
Directly confront your colleague about their behavior and the count discrepancy.
Report the discrepancy to the pharmacy department without noting your colleague's behavior.
Document the observations and report them to your immediate supervisor.