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JNC7 Classification Table – for adults within the U.S
BP Classification Systolic (mmHg)
Dia
SOURCE: The Seventh Report of the Joint National Committee on Prevention,
Evaluation and Treatment of High Blood Pressure for adults, according
National Heart, Lung and Blood Institute - May 2003.
Blood Pressure Variations
An individual’s blood pressure varies greatly on a daily and seasonal basis. It
may vary by 30 to 50 mmHg due to various conditions during the day. In
hypertensive individuals, variations are even more pronounced. Normally,
the blood pressure rises while at work or play and falls to its lowest levels
during sleep. So, do not be overly concerned by the results of one
measurement.
Take measurements at the same time every day using the procedure
described in this manual to get to know
your normal blood pressure. Regular
readings give a more comprehensive blood
pressure history. Be sure to note the date
and time when recording your blood
pressure. Consult your doctor to interpret
your blood pressure data.
BP Classification
Systolic
Diastolic
(mmHg)
Normal
Less than 120 and less than 80
Prehypertension
120-139 or 80-89
Stage 1 Hypertension
140-159 or 90-99
Stage 2 Hypertension
More than 160
or
More than 100
Detection,
to the website.
(mmHg)
