The nurse is providing teaching to a client and family about schizophrenia before discharge from an inpatient facility. The nurse should instruct the family to notify the healthcare provider when which behavior is observed?

A. Changes in appetite: While appetite changes may occur in schizophrenia or related medication side effects, minor fluctuations are less indicative of acute symptom exacerbation and do not necessarily require immediate notification. Monitoring over time is typically sufficient. B. Decreased attention to detail: Difficulty with attention or concentration can be part of baseline cognitive impairment in schizophrenia. Although important to note, subtle changes in attention are not an urgent sign of symptom relapse. C. Fear of large dogs: Specific phobias or unusual fears may exist independently of schizophrenia and are not typically a reliable indicator of relapse or acute decompensation requiring immediate intervention. D. Social withdrawal: Sudden or increased social withdrawal is a common early warning sign of relapse in schizophrenia. It may indicate worsening negative symptoms or early psychotic episodes, and prompt notification of the healthcare provider allows timely assessment and intervention to prevent full symptom exacerbation.