Which symptom indicates a potential complication in a pediatric patient?

Bruising in a pediatric patient can indicate a potential complication, as it may suggest underlying issues such as a bleeding disorder, abuse, or other medical conditions that could affect coagulation. In children, unexplained or excessive bruising should always be evaluated further to ensure that there is no serious underlying problem. This is especially true if the bruising occurs in unusual patterns or locations, which could be a sign of non-accidental injury or a hematologic condition, such as thrombocytopenia or a clotting factor deficiency.

In contrast, weight gain, increased energy, and improved appetite are generally positive indicators of health and well-being in pediatric patients. These symptoms typically suggest that the child is thriving, growing appropriately, and responding well to treatment or dietary changes rather than indicating any complications. Therefore, while those symptoms can be monitored for overall health, bruising stands out as a sign that requires immediate attention and could indicate serious concerns that necessitate further investigation.