Final answer:
To address a patient's complaint about rough treatment by another RN, it is best to report the incident to the supervisor or higher authority.
Step-by-step explanation:
If a patient complains about rough treatment by another RN, it is important to take appropriate action to address the situation. The correct course of action would be to report the incident to your supervisor or higher authority (option B).
Confronting the RN directly (option A) may escalate the situation and is not the recommended approach. While advising the patient to file a formal complaint (option C) is a valid option, it is essential that the incident is reported to the appropriate authorities within the healthcare organization for proper investigation and resolution.
Ignoring the complaint and continuing with your duties (option D) is not appropriate as it disregards the patient's concerns and could potentially lead to further harm.