A male client, assessed in the emergency department (ED), has a strong odor of alcohol on his breath. The client denies thoughts of harm to self or others, and the healthcare provider discharges the client. As the client begins to leave, the nurse overhears the client mumble, “Now I’m going to shoot myself.” Which intervention should the nurse implement?

A. Inquiring about the client’s support system may be important, but the immediate concern is the statement indicating a potential risk of harm. B. Asking the client to repeat the comment may not be as effective as taking immediate action to prevent harm. C. Stopping the client from leaving the ED is the priority to ensure the client's safety and prevent the potential act of self-harm. D. Recording the statement in the client's chart is important but should be done after taking immediate action to address the potential risk.