You have just assisted with a relatively uneventful spontaneous vaginal delivery of a 38-week newborn to a 29-year-old G1P0001 mother. During your immediate, postpartum maternal assessment, you notice a large amount of vaginal bleeding persisting.

Questions

1. What is the most common cause of this condition?
2. What are the two most important steps in managing this?
3. What are some of the other etiologies to think about?