Clinical Features

Maternal history of premature birth

Onset of symptoms: usually immediately after birth but can occur up to 72 hours postpartum

Characteristic expiratory grunting

Decreased breath sounds on auscultation

Cyanosis due to pulmonary hypoxic vasoconstriction

Signs of increased respiratory effort

• Tachypnea

• Nasal flaring and moderate to severe subcostal/intercostal and jugular retractions