A nurse is caring for a client who is at 36 weeks of gestation and who has a suspected placenta previa. Which of the following findings support this diagnosis?

A. Intermittent abdominal pain following bloody mucus (showing “bloody show”) is more typical of labor onset, not placenta previa. B. Abdominal pain with scant bleeding may suggest placental abruption rather than placenta previa. C. Painless, bright red vaginal bleeding in the third trimester is the classic presentation of placenta previa, resulting from the placenta partially or completely covering the cervical os. The bleeding is usually sudden and without uterine tenderness. D. Increasing abdominal pain with a firm, nonrelaxed uterus is characteristic of placental abruption, not placenta previa.