A pregnant patient is at 25 weeks gestation and is concerned about her risk of preterm labor. Which of the following symptoms should the nurse educate the patient to report immediately?
Correct Answer: C
Rationale: The correct answer is C: Painful, regular contractions. At 25 weeks gestation, experiencing painful, regular contractions could indicate preterm labor, which requires immediate medical attention to prevent premature birth. Mild back pain and cramping (choice A) are common in pregnancy and may not necessarily indicate preterm labor. Increased vaginal discharge (choice B) is also common in pregnancy and not typically a sign of preterm labor. Feeling of pelvic pressure after physical activity (choice D) is common due to the growing uterus and ligament stretching, but it is not a definitive sign of preterm labor unless accompanied by other symptoms like contractions.