Inhaled Beta-2 Agonist Versus Epinephrine For Treatment of Transient Tachypnea of Newborn (TTN)

Inclusion Criteria: * babies with 35 weeks of gestation or more in the first 6 hours of life diagnosed with TTN according to the criteria of which are: * Tachypnea (respiratory rate exceeding 60 breaths/ min) within 6 hours after birth * Persistence of tachypnea for at least 12 hours * Mild cyanosis, nasal flaring, or retractions. * Chest radiograph indicating at least one of the following: * Prominent central vascular markings * Widened interlobar fissures * Symmetrical perihilar congestion * Hyperaeration is evidenced by flattening and depression of the diaphragmatic domes. Exclusion Criteria: * Newborn infants with gestational age \< 35 weeks * Meconium aspiration * Respiratory distress syndrome * Pneumonia * Congenital heart diseases including persistent pulmonary hypertension of the neworn (PPHN) * Sepsis or suspected sepsis * Polycythemia * Newborn infants with congenital malformations and chromosomal anomalies * Newborn infants with ventilatory support. * Newborn infants with arrhythmia