While the RN is assessing a mother's perineum on her 2nd postpartum day after having a vaginal delivery, the RN notes a large ecchymotic area located to the left of the mother's perineum. Which one of the following interventions should the RN initiate at this time?

C Encourage the client to take warm sitz baths. D Inform the physician. B Apply ice to the perineum. A Have the client expose the area to air.