Findings that lead the nurse practitioner to suspect depression in a 7-year-old patient include sleep disturbances, poor school performances, decreased concentration, and:

Rationale: A. Persistent worry about future events is more characteristic of generalized anxiety disorder rather than depression. B. Unrealistic worry about harm to family is also suggestive of anxiety disorders in children. C. Loss of pleasure in almost all activities (anhedonia) is a core symptom of depression in children and adolescents, alongside other signs such as sleep disturbances, poor school performance, and decreased concentration. D. Hyperventilation is typically a physical manifestation of anxiety or panic attacks, not depression.