Obstetrics and Gynaecology

at a Glance

Fourth EditionErrol R. Norwitz, John O. Schorge

Multiple Choice

Question 1. All of the following are changes that occur to the fetal circulation within minutes of birth EXCEPT for which?

A Constriction of the umbilical vessels
B Constriction of the ductus venosus
C Constriction of the ductus arteriosus
D Constriction of the hepatic portal sinus
E Closure of the foramen ovale
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