Table 46.1—Classification of Blood-Pressure Levels
|
Category |
Systolic (mm Hg) |
|
Diastolic (mm Hg) |
|
Normal |
< 120 |
and |
< 80 |
|
Prehypertension |
120–139 |
or |
80–89 |
|
Hypertension |
|
|
|
|
Stage 1 |
140–159 |
or |
90–99 |
|
Stage 2 |
≥ 160 |
or |
≥ 100 |
NOTE: Diagnoses should be based on the average of two or more readings taken at each of two or more visits after an initial screening.
SOURCE: Data from JNC 7 Express: the seventh report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure. Bethesda, MD: National High Blood Pressure Education Program, National Heart, Lung, and Blood Institute, National Institutes of Health, US Department of Health and Human Services; May 2003:3 (Table 1).