you are the mother-baby nurse assigned to ms. avery. she is a g4p3 who gave birth to a 9-lb (4082-g) baby boy this morning. ms. avery had an uncomplicated but precipitous vaginal birth. her perineum is intact. she is breastfeeding. all labs are normal. she is now 3 hours postpartum. a family member calls out from the patient’s room for assistance. when you walk into the room ms. avery is standing up on her way to the bathroom with a large pool of blood on the floor. she states, "i don’t know what happened; it all just came when i stood up. i am so dizzy and lightheaded." what do you, as the nurse do next?