Merck Manual

Please confirm that you are a health care professional

honeypot link

Transient Tachypnea of the Newborn

(Neonatal Wet Lung Syndrome)

By

Arcangela Lattari Balest

, MD, University of Pittsburgh, School of Medicine

Last full review/revision Jul 2021| Content last modified Jul 2021
Click here for Patient Education

Transient tachypnea of the newborn is transient respiratory distress caused by delayed resorption of fetal lung fluid. Symptoms and signs include tachypnea, retractions, grunting, and nasal flaring. Diagnosis is suspected when there is respiratory distress shortly after birth and is confirmed by chest x-ray. Treatment is supportive care and oxygen.

Transient tachypnea of the newborn affects premature infants Premature Infants An infant born before 37 weeks gestation is considered premature. Prematurity is defined by the gestational age at which infants are born. Previously, any infant weighing read more , term infants delivered by elective cesarean delivery without labor, and infants born with respiratory depression, all of whom may have delayed clearance of fetal lung fluid. Part of the cause is immaturity of the sodium channels in lung epithelial cells; these channels are responsible for absorbing sodium (and thus water) from the alveoli. (Mechanisms for normal resorption of fetal lung fluid are discussed in Neonatal pulmonary function Neonatal pulmonary function The transition from life in utero to life outside the womb involves multiple changes in physiology and function. Also see Perinatal Problems. (See also Liver Structure and Function and Neonatal... read more .) Other risk factors include macrosomia, maternal diabetes and/or asthma, lower gestational age, and male sex.

Symptoms and Signs

Transient tachypnea of the newborn is suspected when the infant develops respiratory distress shortly after birth.

Symptoms of transient tachypnea of the newborn include tachypnea, intracostal and subcostal retractions, grunting, nasal flaring, and possible cyanosis.

Diagnosis

  • Chest x-ray

  • Complete blood count (CBC) and blood cultures

If initial findings are indeterminate or suggest infection, antibiotics (eg, ampicillin, gentamicin) are given while awaiting culture results.

Treatment

Click here for Patient Education
NOTE: This is the Professional Version. CONSUMERS: Click here for the Consumer Version
Professionals also read
Test your knowledge
Mumps
Mumps is an acute, contagious, systemic viral disease caused by a paramyxovirus. It is spread by droplets or saliva and probably enters through the nose and mouth. After a 12- to 24-day incubation period, headache, anorexia, malaise, and low-grade fever usually develop. Then several other symptoms develop over the next few days. Of these symptoms, edema of which of the following structures is most likely to peak on the 2nd day and typically last 5 to 7 days? 
Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID

Also of Interest

Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID
TOP