CXR
Streaky, linear densities
Hyperinflated lungs and flattened diaphragm
Diffuse patchy opacities (may appear similar to RDS if severe)
ABG
Echocardiography
Blood and sputum cultures
Streaky, linear densities
Hyperinflated lungs and flattened diaphragm
Diffuse patchy opacities (may appear similar to RDS if severe)
Clinical diagnosis based on the following:
Evidence of<unk>  on infant
Respiratory distress shortly after birth
Characteristic CXR findings
If intubation required,<unk>  visualized in trachea
Ways to differentiate between other causes of respiratory distress in a neonate:
Transient tachypnea of the newborn is more common in late preterm infants (34-37 weeks) and RDS in preterm infants, whereas<unk>  more common in postmature infants (>41 weeks)
Delayed transition from fetal circulation symptoms improve more quickly than those of<unk> 
Congenital cyanotic heart disease is differentiated by physical exam (murmurs, hepatomegaly), CXR (cardiac size/shape), and echocardiogram (cardiac anatomy and function)
Evidence of<unk>  on infant
Respiratory distress shortly after birth
Characteristic CXR findings
If intubation required,<unk>  visualized in trachea
Transient tachypnea of the newborn is more common in late preterm infants (34-37 weeks) and RDS in preterm infants, whereas<unk>  more common in postmature infants (>41 weeks)
Delayed transition from fetal circulation symptoms improve more quickly than those of<unk> 
Congenital cyanotic heart disease is differentiated by physical exam (murmurs, hepatomegaly), CXR (cardiac size/shape), and echocardiogram (cardiac anatomy and function)
Meconium aspiration syndrome
Sepsis
Tracheostomy complications
Pneumonia
Tracheomalacia
Delayed transition from fetal circulation
Tracheostomy obstruction
Pneumothorax