Final answer:
Tracheoesophageal fistula (TEF) is the condition the respiratory therapist should suspect. It is a developmental anomaly characterized by an abnormal connection between the esophagus and trachea. Prompt medical evaluation and treatment are necessary.
Step-by-step explanation:
The symptoms described, including cyanosis that lessens with crying, audible stridor, and suprasternal and intercostal retractions, can be indicative of a condition called Tracheoesophageal fistula (TEF). TEF is a developmental anomaly in which there is an abnormal connection between the esophagus and trachea. This can cause the baby to have difficulty breathing and can lead to respiratory distress. Prompt medical evaluation and treatment are necessary.