After vaginal birth of a term neonate, the nurse determines that the placenta is about to separate when which of the following occurs? 1. The uterus becomes oval shaped. 2. The uterus enlarges. 3. A...

After vaginal birth of a term neonate, the nurse determines that the placenta is about to separate when which of the following occurs?

1. The uterus becomes oval shaped.

2. The uterus enlarges.

3. A sudden gush of dark blood occurs.

4. The client expends efforts pushing.