Abstract
Article: Premature Closure of the Ductus Arteriosus in an Otherwise Healthy Fetus
Authors: Michaela Operle and Sharlette Anderson, MHS, RDMS, RVT, RDCS
Category: OB/GYN [OB]
Credit: 0.5 SDMS CME Credit
Objectives: After studying the article entitled “Premature Closure of the Ductus Arteriosus in an Otherwise Healthy Fetus,” you will be able to:
Describe the normal findings of the ductus arteriosus
Identify risks associated with duct arteriosus closure
Determine the sonographic findings of ductus arteriosus closure
In a full-term neonate, when does the ductus arteriosus generally close? One to two days after birth Less than 24 hours after birth One day before birth Three to four days after birth
Which maintains normal patency of the ductus arteriosus? Prostaglandin E3 and E4 Prostaglandin synthase inhibitors Polyphenol-rich foods Prostaglandin E1 and E2
The ductus arteriosus carries blood from the: Pulmonary vein to the descending aorta Pulmonary artery to the descending aorta Aortic vein to the descending aorta Aortic artery to the descending aorta
Which is a reported cause of ductus arteriosus closure? Maternal alcohol exposure Oligohydramnios Maternal polyphenol ingestion Polyhydramnios
Which sonographic finding is associated with complete closure of the ductus arteriosus? Turbulent ductal flow Absent ductal flow Increased systolic flow Increased diastolic flow
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