What is NOT a clinical finding of abnormal transition in a newborn?

High muscle tone is not typically a clinical finding associated with abnormal transition in a newborn. During the transition period immediately after birth, a newborn is expected to exhibit certain clinical signs and symptoms that indicate how well they are adapting to life outside the womb.

Irregular respiratory effort is often observed in newborns who are having difficulty with their transition, reflecting their struggle to establish effective breathing patterns. Rapid heart rate, or tachycardia, can also indicate distress or inadequate oxygenation and is therefore a concerning sign pointing towards an abnormal transition. Low oxygen saturation is a critical indicator of respiratory distress and inadequate oxygenation, which can lead to hypoxia if not addressed promptly.

In contrast, high muscle tone is generally associated with adequate neurological function and can indicate a responsive and healthy newborn. Thus, it does not align with the characteristics of abnormal transition, where the expected signs are often related to respiratory or cardiovascular difficulty.