[4] The symptoms/signs of pulmonary atresia that will occur in babies are consistent with cyanosis, some fatigue and some shortness of breath (eating may be a problem as well).

[2] Potential risk factors that can cause this congenital heart defect are those the pregnant mother may come in contact with, such as:[2][6] In regards to the diagnosis of pulmonary atresia the body requires oxygenated blood for survival.

pulmonary atresia is not threatening to a developing fetus however, because the mother's placenta provides the needed oxygen since the baby's lungs are not yet functional.

Due to this, the newborn baby is blue in color and pulmonary atresia can usually be diagnosed within hours or minutes after birth.

[medical citation needed] The diagnosis of pulmonary atresia can be done via the following exams/methods: an echocardiogram, chest x-ray, EKG and an exam to measure the amount of O2 in the body.

If the condition is left uncorrected it may be fatal, but the prognosis has greatly improved over the years for those with pulmonary atresia.

If the patient's right ventricle is exceptionally small, many surgeries will be needed in order to help stimulate normal circulation of blood to the heart.