Question

What is the most likely cause of a PDA (patent ductus arteriosus)?

1) Genetic factors
2) Infection
3) Maternal drug use
4) Premature birth

Answer 1

The most likely cause of a patent ductus arteriosus (PDA) is premature birth.

Step-by-step explanation:

The most likely cause of a patent ductus arteriosus (PDA) is premature birth. A patent ductus arteriosus is a congenital condition in which the ductus arteriosus, a vessel that connects the aorta with the pulmonary artery, fails to close. This failure can occur due to the premature development of the infant's cardiovascular system. While genetic factors and maternal drug use can contribute to the risk of PDA, premature birth is considered the most common cause.