A nurse notes that a colleague seems exhausted, discouraged, distracted, and expresses dissatisfaction with being a nurse. The nurse should identify these as manifestations of which of the following conditions?

A. Dementia is a progressive cognitive decline that affects memory, reasoning, and behavior. While exhaustion and distraction could be seen in dementia, it is unlikely in an otherwise healthy nurse. B. Burnout is a state of physical, emotional, and mental exhaustion caused by chronic workplace stress. Symptoms include fatigue, cynicism, reduced effectiveness, and dissatisfaction with work. C. Traumatic brain injury (TBI) results from a head injury and leads to cognitive and physical symptoms like memory loss, headaches, and coordination issues, which do not align with the scenario. D. Bipolar disorder involves episodes of mania and depression, not just exhaustion and dissatisfaction. It is a clinical mental health condition, whereas burnout is work-related stress.