Which lab studies are used in the diagnosis of chorioamnionitis?

Updated: May 08, 2018
  • Author: Fayez M Bany-Mohammed, MD; Chief Editor: Ted Rosenkrantz, MD  more...
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During the intrapartum period, the diagnosis of chorioamnionitis is usually based on clinical criteria, particularly for pregnancies at term.

Laboratory studies for asymptomatic pregnant mothers who present with premature labor or PROM include the following:

  • Examination of amniotic fluid

  • Maternal blood studies

  • Maternal urine studies

  • Maternal group B streptococcal (GBS) screening test

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