A nurse manager is reviewing a recent client report related to a staff nurse. Which of the following behaviors by a nurse at work might be red flags for a substance use disorder?

A Increased irritability towards supervisors outspokenness regarding work issues increased attendance at staff meetings. D Increased cheerfulness increased energy helping other nurses on the shift. C Volunteering for overtime on a continual basis avoiding having a witness to wasting narcotics needing to be alone in the medication room when preparing medications. B Crying sharing personal details of relationship problems monopolizing conversations.