What aspect is NOT part of the Silverman-Anderson Index of Respiratory Distress?

The Silverman-Anderson Index of Respiratory Distress is a clinical tool used to assess the degree of respiratory distress in neonates, specifically focusing on observable physical signs. The aspects assessed by this index include the upper chest movements, the presence and severity of retractions, nasal flaring, and grunting.

The aspect regarding lung sounds is not part of the Silverman-Anderson Index because this tool focuses solely on physical signs visible during observation rather than auscultation findings, such as lung sounds. Lung sounds are typically evaluated separately during a respiratory assessment and do not contribute to the scoring of respiratory distress in this particular index.

The other options presented accurately describe components of the Silverman-Anderson Index. Upper chest movements evaluate whether the movements are synchronized, retractions assess the presence of xiphoid/tracheal retractions, and nasal flaring measures the extent of nasal dilatation observed in the infant. These components help clinicians quantify the degree of respiratory distress based on observable and measurable physical signs.