Nephrology Question 34 Instructor

What is the classification and definition of hypertension in pregnancy?

As per ACOG and ISSHP, the classification and definitions of hypertensive disorders of pregnancy are as follows:

  • Preeclampsia/eclampsia: sBP >140 mmHg and dBP >90 mmHg and proteinuria >300 mg in 24 hours after 20 weeks of gestation
  • Transient hypertension of pregnancy: Same as above but no proteinuria
  • Chronic hypertension: Hypertension antedating pregnancy
  • Chronic hypertension with superimposed preeclampsia: Worsening blood pressure with proteinuria >300 mg in 24 hours


ACOG Committee on Obstetric Practice. ACOG practice bulletin. Diagnosis and management of preeclampsia and eclampsia. Obstet Gynecol. 2002;99(1): 159 67.

Brown MA et al. The classification and diagnosis of the hypertensive disorders of pregnancy: statement from the International Society for the Study of Hypertension in Pregnancy (ISSHP). Hypertens Pregnancy. 2001;20(1):IX-XIV.

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