Pediatrics True statement about ductus arteriosus is: A It undergoes anatomic closure within 24 hours of birth B Forms the ligamentum venosum in later life C It is induced to close by high levels of prostaglandins D May cause a machinery murmur by its patency. 💡 Explanation True statement about ductus arteriosus is: ✓ Correct Answer: D. May cause a machinery murmur by its patency.