Transient tachypnea of the newborn
How is transient tachypnea of the newborn diagnosed?
Chest x-rays are often used to help diagnose TTN. On x-ray, the lungs show a streaked appearance and appear over-inflated. However, it may be difficult to tell whether the problem is TTN or another kind of respiratory problem such as hyaline membrane disease.
Often, TTN is diagnosed when symptoms suddenly resolve by the third day of life.