In suspected child physical abuse by a caregiver, which finding most strongly suggests abuse?

• A. Injury explainable by an obvious accident and consistent with the child's age
• B. Injury not explained and not compatible with developmental capabilities
• C. Disparities between observed injuries and reported mechanism
• D. Injury not explained and not compatible with developmental capabilities, with inconsistent histories

Answer: (D)

When evaluating suspected physical abuse, the strongest red flag is an injury that cannot be explained and does not fit what the child could reasonably do at their age, especially if the caregiver’s story is inconsistent or changes over time. An injury that is unexplainable and developmentally implausible suggests non-accidental trauma more than an accident would. Adding inconsistent histories strengthens this concern, because it indicates the caregiver cannot provide a coherent or plausible account for the injury. In contrast, injuries that align with age and have a plausible mechanism are more compatible with accidental injury. So the most concerning finding is an injury that is both unexplained and incompatible with developmental capabilities, accompanied by inconsistencies in the history.