Final answer:
Marie is in her third trimester of pregnancy and at the Labor & Delivery Triage for evaluation, which is typical as the pregnancy nears full term with increased fetal growth and onset of labor.
Step-by-step explanation:
Marie, a pregnant 25-year-old female, is at 37.2 weeks of gestation and is undergoing an evaluation at the Labor & Delivery Triage for her third baby. At this stage of pregnancy, Marie is in her third trimester, which is characterized by significant fetal growth, weight gain, and preparation for labor and delivery. The labor process typically involves three stages: dilation of the cervix, the birth of the baby, and delivery of the placenta.