MSFinals-3270

MSFinals-3270

A 28-year-old woman who is 20 weeks pregnant visits the obstetric clinic for a routine ultrasound scan. During the examination, it is observed that the mother’s uterus is smaller than expected for her stage of pregnancy, and the ultrasound scan confirms the presence of intrauterine growth restriction (IUGR). The medical team inquires about any potential risk factors for IUGR that the mother may have.
What is a known maternal risk factor for intrauterine growth restriction?