A nurse is assessing a 28-week gestation preterm infant who was born 2 hours ago. Which assessment finding would be the most concerning indicator of respiratory distress syndrome (RDS)?

A 28-week gestation infant is at high risk for Respiratory Distress Syndrome (RDS) due to insufficient surfactant production. While early signs like mild grunting or tachypnea require monitoring, the progression to signs of severe increased work of breathing indicates impending respiratory failure and the need for immediate escalation.

Critical Assessment Findings (Most Concerning):

• Severe Retractions: Deep, visible sucking in of the chest wall at the intercostal and substernal areas reflects extreme negative pressure needed to inflate stiff, non-compliant lungs.
• Nasal Flaring: An involuntary reflex to reduce upper airway resistance and increase the volume of air entering the lungs with each breath.
• Expiratory Grunting (when severe/continuous): The infant exhales against a partially closed glottis to generate intrinsic positive end-expiratory pressure (PEEP), a last-ditch effort to keep alveoli open. A progression from soft/intermittent to loud/continuous grunting is ominous.

Nursing Priority: When severe retractions and nasal flaring are observed, the nurse must immediately notify the provider, prepare for respiratory support (e.g., CPAP, mechanical ventilation), and anticipate the need for exogenous surfactant administration and close monitoring of oxygen saturation and blood gases.