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The NHLBI guidelines define normal blood pressure as follows:
Less than 120 mm Hg systolic pressure
Less than 80 mm Hg diastolic pressure
These numbers should be used as a guide only. A single elevated blood pressure measurement is not necessarily an indication of a problem. Your physician will want to see multiple blood pressure measurements over several days or weeks before making a diagnosis of hypertension (high blood pressure) and initiating treatment. A person who normally runs a lower-than-usual blood pressure may be considered hypertensive with lower blood pressure measurements than 140/90.
When a woman has pre-existing hypertension or develops hypertension before the 20th week of pregnancy, this is called chronic hypertension.
Other forms of hypertension in pregnancy include preeclampsia. Some women with chronic hypertension also develop preeclampsia, resulting in a potentially serious condition.
Clinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Health Care patient, you may have access to the latest, advanced clinical trials.
Open trials refer to studies currently accepting participants. Closed trials are not currently enrolling, but may open in the future.