Which factor should alert the nurse for the potential of a prolapsed umbilical cord?
Correct Answer: A
Rationale: A presenting part at station minus 3 indicates that there is too much empty space between the presenting part (usually the fetus's head) and the pelvic inlet. This increased space raises the potential for the umbilical cord to prolapse through the cervix and into the birth canal ahead of the baby, especially when the membranes rupture. A prolapsed umbilical cord is a severe obstetric emergency that can cause fetal compromise due to umbilical cord compression and compromise of blood flow. It requires immediate intervention to relieve the pressure on the cord and increase the likelihood of a safe delivery. Therefore, a presenting part at station minus 3 should alert the nurse to the potential of a prolapsed umbilical cord.