Final answer:
The nurse should prioritize measures to stop the bleeding and stabilize Olivia's condition.
Step-by-step explanation:
The nurse should first take immediate action to address Olivia's condition suspected with postpartum hemorrhage. Postpartum hemorrhage is a potentially life-threatening complication that can occur after childbirth. The nurse should prioritize measures to stop the bleeding and stabilize Olivia's condition. This may include administering medication to help with uterine contractions, performing manual uterine massage, and notifying the healthcare provider for further interventions.