Final answer:
The described symptoms indicate possible signs of postpartum infection, which should be assessed by a healthcare professional to prevent complications.
Step-by-step explanation:
The symptoms described: membranes ruptured at/over 18 hours, temperature over 100.4, and gestation less than 37 weeks, suggest an answer of Signs of postpartum infection. These signs indicate a possible infection that could have arisen after childbirth. It is important to note that professionals should examine the expelled placenta and fetal membranes carefully to ensure they are intact, as remnants can lead to postpartum hemorrhage. Furthermore, the premature rupture of the amniotic sac before 38 weeks of gestation, known as Preterm Premature Rupture of Membranes (PPROM), is another condition that should be routinely checked to avoid possible infections in the newborn.