How is preeclampsia diagnosed?

Updated: Nov 29, 2018
  • Author: Kee-Hak Lim, MD; Chief Editor: Ronald M Ramus, MD  more...
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Medical consensus is lacking regarding the values that define preeclampsia, but reasonable criteria in a woman who was normotensive before 20 weeks' gestation include a systolic blood pressure (SBP) greater than 140 mm Hg and a diastolic BP (DBP) greater than 90 mm Hg on two successive measurements, 4 hours apart.

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