What is a common clinical sign of RDS in infants?

• A. Nasal congestion
• B. Respiratory rate greater than 60 breaths per minute
• C. Fever
• D. Blue discoloration of lips

Answer: (B)

A respiratory rate greater than 60 breaths per minute is a common clinical sign of Respiratory Distress Syndrome (RDS) in infants. RDS primarily occurs in premature infants due to the immaturity of the lungs, which leads to insufficient production of surfactant, a substance that helps keep the alveoli open. This results in increased work of breathing and can present as tachypnea, or a rapid respiratory rate.

In the context of RDS, tachypnea often occurs within the first few hours after birth and is accompanied by other signs such as grunting, retractions, and nasal flaring. Monitoring the respiratory rate is critical for identifying distress and determining the need for intervention.

While the other options may present in different clinical contexts, they are not hallmark signs of RDS. Nasal congestion does not typically relate to RDS; fever can suggest an infection rather than respiratory distress; and cyanosis, represented by the blue discoloration of lips, indicates a severe oxygenation problem that might be seen in several conditions but is not specifically a distinguishing factor for RDS alone. Understanding these signs helps in the timely recognition and management of infants with RDS.