An ER nurse has recognized a mother who has frequently brought her 3-year-old in for vague symptoms of an undiagnosed neurological disorder and who has frequently requested specialist consultations. The child is brought in unconscious. A concern that the nurse may have is:

A. Physical abuse typically presents with visible signs of injury, inconsistent explanations for trauma, or fearfulness around caregivers. While abuse may coexist, the pattern here involves medical fabrication rather than physical harm. B. Munchausen by proxy (also known as factitious disorder imposed on another) occurs when a caregiver—usually a parent—exaggerates, fabricates, or induces illness in a child to gain attention or sympathy. The repeated vague complaints, specialist seeking, and now unconscious presentation strongly raise this concern. C. Severe organic failure to thrive results from an underlying physical condition affecting growth and development, not from caregiver behavior. It also doesn't typically include extensive medical seeking behavior for vague, shifting symptoms. D. Ingestion of a toxin is possible in any unconscious child, but in this context, without clear evidence of accidental exposure, it may actually be a result of the caregiver's actions in Munchausen by proxy. Thus, it is a potential symptom, not the root concern.