<prompt> All of the following are true about transient tachypnea of newborn except-It is a self limiting diseaseIt may occur after Caeserean sectionIt usually takes 1 month to recoverIt is due to slow absorption of fetal lung fluid  <response>: Transient tachypnea of Newborn o Transient tachypnea of the newborn is a benign self-limiting disease occurring usually in term neonates and is due to delayed clearance of lung fluid.It is also called respiratory distress syndrome type II.TTN follows -Uneventful normal preterm or term vaginal deliveryCesarean deliveryTTN is believed to be secondary to slow absorption of fetal lung fluid resulting in decreased pulmonary compliance and tidal volume and increased dead space thereforealso known as wet lungClinical manifestations o Early onset of tachypneaSometimes retraction or expiratory gruntingOccasionally cyanosisPatients usually recover rapidly within 3 daysHypoxemia, hypercapnia and acidosis are uncommon.The lungs are generally clear without rales or rhonchi and chest roentgenogram shows Prominent pulmonary vascular markings o Fluid lines in the fissure o Prominent inter-labar fissureOveraeration Flat diaphragm o Occasionally pleural fluid. 