A nurse is caring for a client who is in active labor and requesting an epidural. Which of the following actions should the nurse take?

A. Ondansetron is used to treat nausea but is not a routine pre-epidural intervention. B. Administering an IV fluid bolus before epidural anesthesia helps prevent hypotension caused by sympathetic blockade. C. Epidurals can be administered earlier than 7 cm dilation based on maternal request and clinical assessment. D. Oxygen administration is not routinely required before an epidural unless fetal distress or maternal hypoxia is present.