30% of normal, substernal and suprasternal retractions grunting and nasal flaring, the presence of pale or cyanotic skin colour and agitation. In treatment of RDS in both term and preterm infants. Prolonged and recurrent apneic attacks of prematurity. The presence of poorly expanded and / or infiltrated lung fields on chest radiograph. The presence of a condition thought to be responsive to CPAP and associated with one or more of the clinical presentation described above. - Respiratory distress syndrome - Pulmonary edema - Atelactasis - Apnea of prematurity - Recent extubation - Tracheal malacia or other similar abnormality of the lower airways - Transient tachyapnea of the newborn">