3 Useful Information
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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.
