Which of the following is the leading cause of postpartum hemorrhage?  (scroll down for answer)

A) Uterine atony

B) Retained placental fragments

C) Lower genital tract laceration 

D) Underlying coagulopathy 

The correct answer is (A) Uterine atony.

For a quick review of postpartum hemorrhage click here:  http://emdaily.cooperhealth.org/content/back-basics-postpartum-hemorrhage