Which of the following statements best explains why the IV oxytocin postpartum affects bleeding?

• A. The bleeding will stop only when you rest.
• B. The bleeding is minimal until the IV medication is discontinued.
• C. The IV has no effect on bleeding.
• D. The bleeding will worsen immediately after delivery.

Answer: (B)

Postpartum oxytocin works by making the uterus contract and stay firm, which helps compress the blood vessels at the placental site and reduces bleeding. When the IV oxytocin is running, the uterus is kept contracted, so bleeding tends to be minimal. If the infusion is stopped, the uterus can relax and bleeding can resume, which is why the statement describing minimal bleeding only while the IV is continued best fits how this medication affects bleeding. The other options don’t reflect how an ongoing uterotonic reduces bleeding or explain common postpartum patterns.