The nurse is caring for a client at 39 weeks gestation in active labour who is receiving an oxytocin infusion. The nurse notes persistent late decelerations on the fetal monitor. Which of the following actions should the nurse take? Select all that apply. 1. Administer oxygen via a nonrebreather face mask 2. Change maternal position to the left side 3. Discontinue the oxytocin infusion 4. Notify the health care provider 5. Perform a nitramines test 1,2,3,4