Blood Pressure Categories or Classification, Hypertension, High Blood Pressure, Heart Health Infocenter, Holisticonline.com

Category	Systolic	Diastolic
	Blood Pressure Level (mm Hg)
Optimal**	< 120	< 80
Normal	< 130	< 85
High Normal	130–139	85–89
High Blood Pressure
Stage 1	140–159	90–99
Stage 2	160–179	100–109
Stage 3	=> 180	=>110
* For those not taking medicine for high blood pressure and not having a short-term serious illness. These categories are from the National High Blood Pressure Education Program. ** Optimal blood pressure with respect to heart disease risk is below 120/80 mm Hg. However, unusually low readings should be evaluated for clinical significance.

Legend

< means LESS THAN

=> means GREATER THAN OR EQUAL TO

When systolic and diastolic blood pressures fall into different categories, the higher category should be used to classify blood pressure level. For example, 160/80 mm Hg would be stage 2 hypertension (high blood pressure).

Source: National Institutes of Health

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