Group B streptococcus (GBS) colonization in pregnancy Quiz: Ace Your Exams

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A 25-year-old woman, gravida 1, para 0, at 39 weeks of gestation presents to the obstetrics unit of the hospital for planned C-section. Her pregnancy has been uncomplicated, and she takes a prenatal vitamin every day. She has had no recent illnesses or sick contacts. Temperature is 37.0 ºC (98.6 ºF), pulse is 96/min, respiratory rate is 18/min, and blood pressure is 108/60 mmHg. On physical exam, the patient is well-appearing with a gravid abdomen. Fetal heart tracings are reassuring. She is not currently in labor and amniotic membranes are intact. The patient’s urine culture was negative at the initial prenatal appointment but vaginal-rectal culture at 37 weeks was positive for group B streptococcus (GBS). Which of the following is the most appropriate next step in management? 

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