What is the sign that indicates the need for further evaluation when an infant is born?

Facial asymmetry in a newborn can be indicative of several underlying issues that warrant further evaluation. This could range from potential neurological deficits to congenital abnormalities. The presence of facial asymmetry is particularly concerning because it may suggest complications such as a birth injury, issues related to cranial nerve function, or conditions like hemifacial microsomia, which could require prompt assessment and potential intervention.

In contrast, the other signs mentioned have varying degrees of clinical significance. The presence of meconium is relatively common and not an immediate concern unless accompanied by respiratory distress or other symptoms indicating potential aspiration. Weight less than 2500g indicates low birth weight, which is significant, but it is categorized into a management protocol for monitoring and does not necessarily indicate an urgent need for further evaluation. An increased heart rate may be a normal finding in newborns, particularly in the early stages after birth, unless it is abnormally elevated or accompanied by other concerning symptoms. Therefore, while these signs require monitoring, facial asymmetry stands out as a more immediate red flag that necessitates further medical investigation.