Answer: In 2000, the National High Blood Pressure Education Program Working Group revised the classification system for this set of conditions. Four categories are now recognized for hypertension in pregnancy: chronic hypertension, gestational hypertension, preeclampsia, and chronic hypertension with superimposed preeclampsia. The American College of Obstetricians and Gynecologists has adopted the Working Group’s system. Reference: [...]

Answer: In a pregnant woman, a systolic blood pressure above 140 mmHg or a diastolic blood pressure above 90 mmHg is considered hypertension. Reference: American College of Obstetricians and Gynecologists: Diagnosis and Management of Preeclampsia and Eclampsia. ACOG Practice Bulletin No. 33. Obstet Gynecol 99:159-167, 2002