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Definitions: Hypertensive Disorders of Pregnancy (HDP)

  • HTN in pregnancy: SBP ≥140 mmHg and/or DBP ≥90 mmHg (avg of ≥2 measurements @ least 15 mins apart in same arm)

  • Resistant HTN: need for 3 antihypertensives for BP control @ ≥20 wks gest

  • Severe HTN: SBP ≥160 mmHg or DBP ≥110 mmHg

  • Significant proteinuria: ≥0.3 g/d (24 hr collection) or ≥20 mg/mmol (random urine)

    • Suspect if dipstick ≥1+ protein

  • HELLP syndrome

    • Hemolysis

    • Elevated Liver enzymes

    • Low Platelets

  • Adverse condition: increases risk of severe complications (see table)

  • Serious complication: warrants delivery (see table)




















Adapted from SOGC Clinical Practice Guideline. Diagnosis, Evaluation, and Management of the Hypertensive Disorders of Pregnancy: Executive Summary. J Obstet Gynaecol Can 2014;36(5):416–438

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