FCOG-1216
A newborn male infant, born to a 30-year-old gravida 3 para 0 aborta 2 woman, who did not receive any prenatal care, is evaluated in the neonatal intensive care unit for growth restriction.The mother who presented for labor at approximately 38 weeks of gestation, had a forceps-assisted vaginal delivery due to fetal heart rate abnormalities. The newborn’s Apgar scores were 6 and 8 at 1 and 5 minutes, respectively and his weight was 2.5 kg. Physical examination shows microcephaly, a wide anterior fontanelle, cleft palate and hypoplasia of the distal phalanges. A history of which of the following will be obtained on further evaluation of the mother?