What are characteristics of chronic hypertension during pregnancy?

Updated: Nov 29, 2018
  • Author: Kee-Hak Lim, MD; Chief Editor: Ronald M Ramus, MD  more...
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Chronic hypertension is characterized by either (1) a BP 140/90 mm Hg or greater before pregnancy or diagnosed before 20 weeks' gestation; not attributable to gestational trophoblastic disease or (2) hypertension first diagnosed after 20 weeks' gestation and persistent after 12 weeks postpartum.

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