RCCS Practice Questions - Registered Congenital Cardiac Sonographer Exam

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Which of the following typically closes FUNCTIONALLY within the first 24-72 hours of life and ANATOMICALLY within 2-3 weeks in a healthy term newborn?

Foramen ovale Ductus arteriosus Umbilical vein Falciform ligament

Correct Answer:

Ductus arteriosus

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