An official website of the United States government
Here’s how you know
Official websites use .gov A
.gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS A
lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Patentductusarteriosus (PDA) is a condition in which the ductusarteriosus does not close. The word "patent" means open. The ductusarteriosus is a blood vessel that allows blood to ...