Final answer:
The nurse can anticipate a large-for-gestational age newborn in a client with SLE at 39 weeks' gestation.
Step-by-step explanation:
The nurse can anticipate a large-for-gestational age newborn in a client with systemic lupus erythematosus (SLE) at 39 weeks' gestation. SLE can cause complications during pregnancy, and one of the potential complications is fetal macrosomia, which refers to a newborn who is larger than average for their gestational age. This is due to factors such as placental insufficiency and increased insulin resistance in the mother.