3 Useful Information
14
GB
3.5 Blood pressure classification for adults
The table on the right
shows the reference
values for normal
and high blood
pressure, discounting
age and sex.
The table represents
the guidelines from
the World Health Organisation (WHO).
Blood pressure
Systolic Diastolic Colour
classification (mmHg)
(mmHg)
code
Optimal
< 120
< 80
Green
Normal
120-129
80-84
Green
High normal
130-139
85-89
Yellow
High blood pressure degree 1 140-159
90-99
Orange
High blood pressure degree 2 160-179
100-109
Red
High blood pressure degree 3
> 180
> 110
Red
3.6 Influencing and evaluating readings
• Measure your blood pressure several times, then
record and compare the results. Do not draw any
conclusions from a single reading.
• Your blood pressure readings should always be
evaluated by a doctor who is also familiar with your
personal medical history. Take regular readings and
inform your doctor from time to time.
• When taking readings, remember that the daily
values are influenced by several factors. Smoking,
consumption of alcohol, drugs and physical exertion
influence the measured values in various ways.
Diastolic
(mmHg)
Normal BP
High-normal BP
Mild Hypertension
Moderate Hypertension
Severe Hypertension
Systolic
(mmHg)
Optimal
80
85
90
100
110
180
160
140
130
120
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