(B) RDS # RDS:> Clinical features. Respiratory distress usually occurs within the first 6 hours of life. Clinical features include tachypnea, retractions, grunting, cyanosis, and decreased air entry.> Diagnosis can be confirmed by chest X-ray.> Radiological features include reticulogranular pattern, ground glass opacity, low lung volume, air bronchogram, and a whiteout lung in severe disease