A nurse is assessing a 6-month-old infant who has respiratory syncytial virus. The nurse should immediately report which of the following findings to the provider?

A. Pharyngitis: Mild inflammation of the throat is common with viral infections and typically does not indicate immediate respiratory compromise. While it should be documented, it is not usually an urgent finding in an infant with RSV. B. Tachypnea: Rapid breathing in a 6-month-old with RSV may indicate respiratory distress or hypoxia. Infants can decompensate quickly, so tachypnea requires prompt reporting to the provider for timely intervention. C. Rhinorrhea: A runny nose is a common symptom of RSV and other upper respiratory infections. It is generally not dangerous by itself and does not require immediate provider notification unless accompanied by signs of distress. D. Coughing: Cough is a typical symptom of RSV and usually reflects airway irritation. It should be monitored, but coughing alone is not an urgent finding unless it is severe, causing apnea, or associated with cyanosis.