Which of the following is a stimulus for closure of ductus arteriosus?
Correct Answer: Increased O2 tension
Description: a. Increased O2 tension(Ref: Nelson's 20/e p 2162)In the course of several days after birth, the high arterial Po2 constricts and eventually closes the ductus arteriosus, which eventually becomes the ligamentum arteriosum
Category:
Pediatrics
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