How Will I Be Treated if I Am Positive for Group B Strep?
If a pregnant patient is cultured at 35 weeks of gestation and found to be positive for group B strep, the mother is treated in active labor or with rupture of the fetal membranes with IV antibiotics.
Penicillin G is the drug of choice for treatment of GBS, but for those patients who have penicillin allergies, clindamycin or vancomycin can be used. Upon identification of GBS in a penicillin allergic patient the laboratory runs culture and sensitivity so that we know which antibiotic to use in labor.
Giving at least 2 doses of penicillin 4 hours apart is optimal treatment, with the lowest chance of the baby contracting the infection. If a pregnant patient has a UTI in pregnancy with GBS they will be treated for the UTI when it happens and again in labor or with membrane rupture. Those patients with a prior baby that had group B strep disease (such as pneumonia or meningitis) will also be treated in labor, even if their routine 35 week GBS culture is negative.
THINKING ABOUT GETTING PREGNANT OR HAVE QUESTIONS ABOUT YOUR PREGNANCY?
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